イスラム国が1日で3億円稼げる理由　「史上最も裕福なテロ集団」の実態とは

SANLIURFA, TURKEY - SEPTEMBER 27: (TURKEY OUT) Kurdish Syrian refugees carries a holy Koran as she crosses the Turkish-Syrian border with her children near the southeastern town of Suruc on September 27, 2014 in Sanliurfa province of Turkey. Nearly 140,000 Syrian Kurds have fled into Turkey since last week, the fastest exodus of the entire three-year civil war. The United Nations refugee agency said on Tuesday it was making contingency plans in case all 400,000 inhabitants of the Syrian Kurdish town of Kobani fled into Turkey to escape advancing Islamic State militants. (Photo by Stringer/Getty Images)

About 500 Shiite volunteers from Tal Afar attend a combat training session at a military camp in the Shiite shrine city of Karbala in central Iraq on September 25, 2014 to join the fight against jihadists of the Islamic State (IS) group which led a sweeping offensive in June that overran much of the country's Sunni Arab heartland. The militant organisation has taken control of important cities including Mosul, Saddam Hussein's hometown Tikrit and Tal Afar in northern Iraq, as well as Fallujah and part of Ramadi in the west. AFP PHOTO / MOHAMMED SAWAF (Photo credit should read MOHAMMED SAWAF/AFP/Getty Images)

About 500 Shiite volunteers from Tal Afar attend a combat training session at a military camp in the Shiite shrine city of Karbala in central Iraq on September 25, 2014 to join the fight against jihadists of the Islamic State (IS) group which led a sweeping offensive in June that overran much of the country's Sunni Arab heartland. The militant organisation has taken control of important cities including Mosul, Saddam Hussein's hometown Tikrit and Tal Afar in northern Iraq, as well as Fallujah and part of Ramadi in the west. AFP PHOTO / MOHAMMED SAWAF (Photo credit should read MOHAMMED SAWAF/AFP/Getty Images)

About 500 Shiite volunteers from Tal Afar attend a combat training session at a military camp in the Shiite shrine city of Karbala in central Iraq on September 25, 2014 to join the fight against jihadists of the Islamic State (IS) group which led a sweeping offensive in June that overran much of the country's Sunni Arab heartland. The militant organisation has taken control of important cities including Mosul, Saddam Hussein's hometown Tikrit and Tal Afar in northern Iraq, as well as Fallujah and part of Ramadi in the west. AFP PHOTO / MOHAMMED SAWAF (Photo credit should read MOHAMMED SAWAF/AFP/Getty Images)

CORRECTING DATE IN CAPTION About 500 Shiite volunteers from Tal Afar attend a military training session at a military camp in the Shiite shrine city of Karbala in central Iraq on September 25, 2014 to join the fight against jihadists of the Islamic State (IS) group which led a sweeping offensive in June that overran much of the country's Sunni Arab heartland. The militant organisation has taken control of important cities including Mosul, Saddam Hussein's hometown Tikrit and Tal Afar in northern Iraq, as well as Fallujah and part of Ramadi in the west. AFP PHOTO / MOHAMMED SAWAF (Photo credit should read MOHAMMED SAWAF/AFP/Getty Images)

Iraqi Shiite mourners attend the funeral of a victim on September 24, 2014 in the holy city of Najaf a day after a car bombing targeted a market in the Shiite neighbourhood of Sadr City in Baghdad. The blast killed at least 14 people and wounded 37, according to a medical source. The Islamic State jihadist group stopped its advance several dozen kilometres (miles) from Baghdad but the city has continued to be plagued by daily violence, including car bombs mainly targeting Shiite areas. AFP PHOTO / HAIDAR HAMDANI (Photo credit should read HAIDAR HAMDANI/AFP/Getty Images)

Iraqi Shiite mourners attend the funeral of a victim on September 24, 2014 in the holy city of Najaf a day after a car bombing targeted a market in the Shiite neighbourhood of Sadr City in Baghdad. The blast killed at least 14 people and wounded 37, according to a medical source. The Islamic State jihadist group stopped its advance several dozen kilometres (miles) from Baghdad but the city has continued to be plagued by daily violence, including car bombs mainly targeting Shiite areas. AFP PHOTO / HAIDAR HAMDANI (Photo credit should read HAIDAR HAMDANI/AFP/Getty Images)

KIRKUK, IRAQ - SEPTEMBER 23: Shi'ite Turkmen militias mount guard against possible Islamic State of Iraq and Levant (ISIL) attacks in Tuz Khurmatu district of Kirkuk, Iraq, on September 23, 2014. (Photo by Ali Mukarrem Garip/Anadolu Agency/Getty Images)

KIRKUK, IRAQ - SEPTEMBER 23: Shi'ite Turkmen militias mount guard against possible Islamic State of Iraq and Levant (ISIL) attacks in Tuz Khurmatu district of Kirkuk, Iraq, on September 23, 2014. (Photo by Ali Mukarrem Garip/Anadolu Agency/Getty Images)

KIRKUK, IRAQ - SEPTEMBER 23: Shi'ite Turkmen militias mount guard against possible Islamic State of Iraq and Levant (ISIL) attacks in Tuz Khurmatu district of Kirkuk, Iraq, on September 23, 2014. (Photo by Ali Mukarrem Garip/Anadolu Agency/Getty Images)

SANLIURFA, TURKEY - SEPTEMBER 23: (TURKEY OUT) A young Syrian Kurdish refugee enters Turkey at the Yumurtalik crossing gate on September 23, 2014 in Turkey. As many as 138,000 Syrian Kurds have poured into Turkey since September 19 fleeing the Islamic State (IS) group offensive in northeastern Syria, according to the UNHCR. (Photo by Stringer/Getty Images)

SANLIURFA, TURKEY - SEPTEMBER 23: (TURKEY OUT) A young Syrian Kurdish refugee enters Turkey at the Yumurtalik crossing gate near Suruc on September 23, 2014 in Turkey. As many as 138,000 Syrian Kurds have poured into Turkey since September 19 fleeing the Islamic State (IS) group offensive in northeastern Syria, according to the UNHCR. (Photo by Stringer/Getty Images)

SANLIURFA, TURKEY - SEPTEMBER 23: (TURKEY OUT) A member of the Turkish police holds a young Syrian Kurdish refugee as the medics inject a vaccine after they enter Turkey at the Yumurtalik crossing gate on September 23, 2014 in Turkey. As many as 138,000 Syrian Kurds have poured into Turkey since September 19 fleeing the Islamic State (IS) group offensive in northeastern Syria, according to the UNHCR. (Photo by Stringer/Getty Images)

Kurdish protestors clash with Turkish soldiers near the Syrian border after Turkish authorities temporarily closed the border, blocking young Syrian Kurds who had accompanied their families to safety inside Turkey from returning to the battlefront, on September 22, 2014 at the southeastern town of Suruc in Sanliurfa province. Turkey said on September 22 that some 130,000 people had flooded across its border from Syria as Kurdish fighters battled Islamic State group jihadists trying to capture a strategic town. AFP PHOTO/BULENT KILIC (Photo credit should read BULENT KILIC/AFP/Getty Images)

Kurdish protestors clash with Turkish soldiers near the Syrian border after Turkish authorities temporarily closed the border, blocking young Syrian Kurds who had accompanied their families to safety inside Turkey from returning to the battlefront, on September 22, 2014 at the southeastern town of Suruc in Sanliurfa province. Turkey said on September 22 that some 130,000 people had flooded across its border from Syria as Kurdish fighters battled Islamic State group jihadists trying to capture a strategic town. AFP PHOTO/BULENT KILIC (Photo credit should read BULENT KILIC/AFP/Getty Images)

A Kurdish man bleeds after being injured while walking in the center of Suruc during clashes between protestors and Turkish riot policemen near the Syrian border after Turkish authorities temporarily closed the border, blocking young Syrian Kurds who had accompanied their families to safety inside Turkey from returning to the battlefront, on September 22, 2014 at the southeastern town of Suruc in Sanliurfa province. Turkey said on September 22 that some 130,000 people had flooded across its border from Syria as Kurdish fighters battled Islamic State group jihadists trying to capture a strategic town. AFP PHOTO/BULENT KILIC (Photo credit should read BULENT KILIC/AFP/Getty Images)

Kurdish protestors clash with Turkish soldiers near the Syrian border after Turkish authorities temporarily closed the border, blocking young Syrian Kurds who had accompanied their families to safety inside Turkey from returning to the battlefront, on September 22, 2014 at the southeastern town of Suruc in Sanliurfa province. Turkey said on September 22 that some 130,000 people had flooded across its border from Syria as Kurdish fighters battled Islamic State group jihadists trying to capture a strategic town. AFP PHOTO/BULENT KILIC (Photo credit should read BULENT KILIC/AFP/Getty Images)

SANLIURFA, TURKEY - SEPTEMBER 22: Syrians, fleeing from clashes between the Islamic State of Iraq and Levant (ISIL) militants and Democratic Union Party (PYD) forces in the Tal Abyad district of Syria's Ar-Raqqah Governorate, passing through Turkish border gate on September 22, 2014 in Suruc district of Sanliurfa province of Turkey. (Photo by Orhan Cicek/Anadolu Agency/Getty Images)

SANLIURFA, TURKEY - SEPTEMBER 22: Syrians, fleeing from clashes between the Islamic State of Iraq and Levant (ISIL) militants and Democratic Union Party (PYD) forces in the Tal Abyad district of Syria's Ar-Raqqah Governorate, passing through Turkish border gate on September 22, 2014 in Suruc district of Sanliurfa province of Turkey. (Photo by Orhan Cicek/Anadolu Agency/Getty Images)

A Syrian Kurdish boy is vaccinated at the southeastern town of Suruc in Sanliurfa province on September 23, 2014. The UN refugee agency warned Tuesday that as many as 400,000 people may flee to Turkey from Syria's Kurdish region to escape attacks by the Islamic State group. AFP PHOTO / BULENT KILIC (Photo credit should read BULENT KILIC/AFP/Getty Images)

ARLINGTON, VA - SEPTEMBER 23: Lt. Gen. William C. Mayville Jr. speaks about the Syrian bombing campaign September 23, 2014 in Washington, DC. Mayville talked about the U.S. and Arab air strikes in Syria against the jihadist group Islamic State in Iraq and Syria (ISIS). (Photo by Mark Wilson/Getty Images)

SANLIURFA, TURKEY - SEPTEMBER 23: (TURKEY OUT) Syrian Kurdish refugees wait to enter Turkey at the Yumurtalik crossing gate on September 23, 2014 in Turkey. As many as 138,000 Syrian Kurds have poured into Turkey since September 19 fleeing the Islamic State (IS) group offensive in northeastern Syria, according to the UNHCR. (Photo by Stringer/Getty Images)

Lt. Gen. William C. Mayville Jr., Joint Staff Director of Operations Director of Operations, shows before and after photos as he speaks on the airstrikes in Syria during a briefing at the Pentagon September 23, 2014 in Washington, DC. Mayville briefed the press about US and Arab nation joint airstrikes against Islamic State(IS) group targets in Syria and unilateral airstrikes against an al-Qaeda group in Syria. AFP PHOTO/Brendan SMIALOWSKI (Photo credit should read BRENDAN SMIALOWSKI/AFP/Getty Images)

ARLINGTON, VA - SEPTEMBER 23: Lt. Gen. William C. Mayville Jr. speaks about the Syrian bombing campaign September 23, 2014 in Washington, DC. Mayville talked about the U.S. and Arab air strikes in Syria against the jihadist group Islamic State in Iraq and Syria (ISIS). (Photo by Mark Wilson/Getty Images)

IDLIB, SYRIA - SEPTEMBER 23: Syrians collect remains from the rubble of a destroyed house following the U.S.-led coalition's airstrikes against the Islamic State of Iraq and the Levant (ISIL) on a residential area in Idlib, Syria on September 23, 2014. (Photo by Ahmed Hasan Ubeyd/Anadolu Agency/Getty Images)

IDLIB, SYRIA - SEPTEMBER 23: Syrian women collect their belongings from the rubble of a destroyed house following the U.S.-led coalition's airstrikes against the Islamic State of Iraq and the Levant (ISIL) on a residential area in Idlib, Syria on September 23, 2014. (Photo by Ahmed Hasan Ubeyd/Anadolu Agency/Getty Images)

IDLIB, SYRIA - SEPTEMBER 23: Syrians inspect the rubble of destroyed houses following the U.S.-led coalition's airstrikes against the Islamic State of Iraq and the Levant (ISIL) on a residential area in Idlib, Syria on September 23, 2014. (Photo by Ahmed Hasan Ubeyd/Anadolu Agency/Getty Images)

A Kurdish Peshmerga fighter holds an rocket propelled-grenade (RPG) near a flag of the Islamic State (IS) hoisted on the other side of a bridge at the frontline of fighting against Islamist militants in Rashad, on the road between Kirkuk and Tikrit, on September 11, 2014. Ten Arab states, including heavyweight Saudi Arabia, agreed today in Jeddah to rally behind Washington in the fight against Islamic State jihadists, as it seeks to build an international coalition. AFP PHOTO/JM LOPEZ (Photo credit should read JM LOPEZ/AFP/Getty Images)

A flag of the Islamic State (IS) is seen on the other side of a bridge at the frontline of fighting between Kurdish Peshmerga fighters and Islamist militants in Rashad, on the road between Kirkuk and Tikrit, on September 11, 2014. Ten Arab states, including heavyweight Saudi Arabia, agreed today in Jeddah to rally behind Washington in the fight against Islamic State jihadists, as it seeks to build an international coalition. AFP PHOTO/JM LOPEZ (Photo credit should read JM LOPEZ/AFP/Getty Images)

Iraqi Shiite Turkmen worship at a holy site in Amerli on September 3, 2014, that is dedicated to Hasan ibn Ali the second of the twelve Shiite Imams. Islamic-State (IS) militants launched a lightning offencive in the north in June, sweeping through much of the Sunni Arab heartland north and west of Baghdad before turning on Christian and Yazidi areas. Iraqi security forces, now bolstered by thousands of Shiite militiamen as well as Kurdish fighters, have clawed back some ground northeast of Baghdad. AFP PHOTO/ AHMAD AL-RUBAYE (Photo credit should read AHMAD AL-RUBAYE/AFP/Getty Images)

Iraqi Shiite men hand out vegetables to kids after Islamic State (IS) militants were pushed back on September 3, 2014, on the road between Amerli and Tikrit. Amerli was besieged when IS-led militants launched a major offensive in June, overrunning chunks of five Iraqi provinces and sweeping security forces aside, though security forces have now begun to claw back some ground. AFP PHOTO/ AHMAD AL-RUBAYE (Photo credit should read AHMAD AL-RUBAYE/AFP/Getty Images)

Iraqi Shiite militia fighters raise up their weapons as they celebrate pushing back Islamic State (IS) militants on September 3, 2014, on the road between Amerli and Tikrit . Amerli was besieged when IS-led militants launched a major offensive in June, overrunning chunks of five Iraqi provinces and sweeping security forces aside, though security forces have now begun to claw back some ground. AFP PHOTO/ AHMAD AL-RUBAYE (Photo credit should read AHMAD AL-RUBAYE/AFP/Getty Images)

SALADIN, IRAQ - SEPTEMBER 2: Kurdish forces, Shiite militias and Iraqi army broke the siege of army groups led by Islamic State in Amirli and deploy the different parts of the Amirli town, Saladin, Iraq on 2 September, 2014. (Photo by Emrah Yorulmaz/Anadolu Agency/Getty Images)

SALADIN, IRAQ - SEPTEMBER 2: Kurdish forces, Shiite militias and Iraqi army broke the siege of army groups led by Islamic State in Amirli and deploy the different parts of the Amirli town, Saladin, Iraq on 2 September, 2014. (Photo by Emrah Yorulmaz/Anadolu Agency/Getty Images)

SALADIN, IRAQ - SEPTEMBER 2: Shiite militias greets Iraqi Turkmens after they broke the siege of army groups led by Islamic State, with Iraqi army and Kurdish forces in Amirli, Saladin, Iraq on 2 September, 2014. (Photo by Emrah Yorulmaz/Anadolu Agency/Getty Images)

SALADIN, IRAQ - SEPTEMBER 2: An Iraqi child plays with the tank after Kurdish forces, Shiite militias and Iraqi army broke the siege of army groups led by Islamic State in Amirli, Saladin, Iraq on 2 September, 2014. (Photo by Emrah Yorulmaz/Anadolu Agency/Getty Images)

Iraqi residents of the town of Amerli celebrate as assistance arrives in the Shiite Turkmen-majority town brought in both by Iraqi government fighters and the United Nations after Iraqi forces broke a months-long jihadist siege of the by Islamic State (IS) fighters, on September 2, 2014. The Sunni extremist IS declared an Islamic 'caliphate' in regions under its control in Iraq and Syria after it swept through much of the Sunni Arab heartland north of Baghdad in June and then stormed minority Christian and Yazidi Kurdish areas. AFP PHOTO/ ALI AL-SAADI (Photo credit should read ALI AL-SAADI/AFP/Getty Images)

SALADIN, IRAQ - SEPTEMBER 1: Iraqi forces ride on a pickup following clashes of Iraqi forces for seizing the village of Sulaiman Bek; Iraqi forces ride on a pickup following clashes of Iraqi forces for seizing the village of Sulaiman Bek, located between the capital Baghdad and the northern Iraqi city of Kirkuk, from Islamic State (IS) fighters on September 1, 2014. Iraqi forces supported by Peshmergas and Shiite militias enter IS-besieged Sulaiman Bek after repelling IS forces. (Photo by Hemn Baban/Anadolu Agency/Getty Images)

SALADIN, IRAQ - SEPTEMBER 1: A demolished car is seen following clashes of Iraqi forces for seizing the village of Sulaiman Bek, located between the capital Baghdad and the northern Iraqi city of Kirkuk, from Islamic State (IS) fighters on September 1, 2014. Iraqi forces supported by Peshmergas and Shiite militias enter IS-besieged Sulaiman Bek after repelling IS forces. (Photo by Hemn Baban/Anadolu Agency/Getty Images)

SALADIN, IRAQ - SEPTEMBER 1: Demolished houses are seen following seizing the village of Sulaiman Bek, located between the capital Baghdad and the northern Iraqi city of Kirkuk, from Islamic State (IS) fighters on September 1, 2014. Iraqi forces supported by Peshmergas and Shiite militias enter IS-besieged Sulaiman Bek after repelling IS forces. (Photo by Hemn Baban/Anadolu Agency/Getty Images)

SALADIN, IRAQ - SEPTEMBER 1: A burning house is seen following clashes of Iraqi forces for seizing the village of Sulaiman Bek, located between the capital Baghdad and the northern Iraqi city of Kirkuk, from Islamic State (IS) fighters on September 1, 2014. Iraqi forces supported by Peshmergas and Shiite militias enter IS-besieged Sulaiman Bek after repelling IS forces. (Photo by Hemn Baban/Anadolu Agency/Getty Images)

SALADIN, IRAQ - SEPTEMBER 1: An Iraqi soldier is seen near a destroyed house following seizing the village of Sulaiman Bek, located between the capital Baghdad and the northern Iraqi city of Kirkuk, from Islamic State (IS) fighters on September 1, 2014. Iraqi forces supported by Peshmergas and Shiite militias enter IS-besieged Sulaiman Bek after repelling IS forces. (Photo by Hemn Baban/Anadolu Agency/Getty Images)

SALADIN, IRAQ - SEPTEMBER 1: Demolished houses are seen following seizing the village of Sulaiman Bek, located between the capital Baghdad and the northern Iraqi city of Kirkuk, from Islamic State (IS) fighters on September 1, 2014. Iraqi forces supported by Peshmergas and Shiite militias enter IS-besieged Sulaiman Bek after repelling IS forces. (Photo by Hemn Baban/Anadolu Agency/Getty Images)

Iraqi fighters advance towards the Shiite town of Amerli from their position in the Ajana area, ten kilometres south of the town, in Salaheddin province, on September 1, 2014 after Iraqi forces broke a jihadist siege where thousands of mainly Shiite Turkmen residents have been trapped for more than two months with dwindling food and water supplies. The capture of the town the previous day is the biggest offensive success for the Iraqi government since militants led by the Sunni Islamic State (IS) jihadist group overran large areas of five provinces in June, sweeping security forces aside. AFP PHOTO/AHMAD AL-RUBAYE (Photo credit should read AHMAD AL-RUBAYE/AFP/Getty Images)

Iraqi volunteer fighters celebrate the breaking of the jihadist siege on the Shiite town of Amerli as they advance towards the town from the position in the Ajana area, ten kilometres south of Amerli, in Salaheddin province, on September 1, 2014 where thousands of mainly Shiite Turkmen residents have been trapped for more than two months with dwindling food and water supplies. The capture of the town the previous day is the biggest offensive success for the Iraqi government since militants led by the Sunni Islamic State (IS) jihadist group overran large areas of five provinces in June, sweeping security forces aside. AFP PHOTO/AHMAD AL-RUBAYE (Photo credit should read AHMAD AL-RUBAYE/AFP/Getty Images)

Iraqi volunteer fighters drive towards the town of Amerli on September 1, 2014 after Iraqi forces broke the jihadist siege on the Shiite town, in Salaheddin province, the previous day, where thousands of mainly Shiite Turkmen residents have been trapped for more than two months with dwindling food and water supplies. The capture of the town is the biggest offensive success for the Iraqi government since militants led by the Sunni Islamic State (IS) jihadist group overran large areas of five provinces in June, sweeping security forces aside. AFP PHOTO/AHMAD AL-RUBAYE (Photo credit should read AHMAD AL-RUBAYE/AFP/Getty Images)

Iraqi volunteer fighters walk in the Anjana area en route to the town of Amerli ten kilometres away, on September 1, 2014 after Iraqi forces broke the jihadist siege on the Shiite town, in Salaheddin province, the previous day, where thousands of mainly Shiite Turkmen residents have been trapped for more than two months with dwindling food and water supplies. The capture of the town is the biggest offensive success for the Iraqi government since militants led by the Sunni Islamic State (IS) jihadist group overran large areas of five provinces in June, sweeping security forces aside. AFP PHOTO/AHMAD AL-RUBAYE (Photo credit should read AHMAD AL-RUBAYE/AFP/Getty Images)

Iraqi volunteer fighters drive in the Ajana area en route to the town of Amerli 10 kilometres away, on September 1, 2014 after Iraqi forces broke the jihadist siege on the Shiite town, in Salaheddin province, the previous day, where thousands of mainly Shiite Turkmen residents have been trapped for more than two months with dwindling food and water supplies. The capture of the town is the biggest offensive success for the Iraqi government since militants led by the Sunni Islamic State (IS) jihadist group overran large areas of five provinces in June, sweeping security forces aside. AFP PHOTO/AHMAD AL-RUBAYE (Photo credit should read AHMAD AL-RUBAYE/AFP/Getty Images)

Iraqi volunteer fighters walk in the Anjana area en route to the town of Amerli ten kilometres away, on September 1, 2014 after Iraqi forces broke the jihadist siege on the Shiite town, in Salaheddin province, the previous day, where thousands of mainly Shiite Turkmen residents have been trapped for more than two months with dwindling food and water supplies. The capture of the town is the biggest offensive success for the Iraqi government since militants led by the Sunni Islamic State (IS) jihadist group overran large areas of five provinces in June, sweeping security forces aside. AFP PHOTO/AHMAD AL-RUBAYE (Photo credit should read AHMAD AL-RUBAYE/AFP/Getty Images)

A fighter from the Iraqi Imam Ali Brigade stands with the Iraqi flag flaying from his backpack during heavy clashes with Islamic State (IS) militants in Tuz Khurmatu in Salaheddin province about 88 kilometres (55 miles) south of Kirkuk on September 1, 2014. Iraqi forces broke through to the jihadist-besieged Shiite town of Amerli, where thousands of people have been trapped for more than two months with dwindling food and water supplies. AFP PHOTO / ALI AL-SAADI (Photo credit should read ALI AL-SAADI/AFP/Getty Images)

SALADIN, IRAQ - SEPTEMBER 1: A Shiite militant makes victory sign as he stands guard after Iraqi forces have entered the northern town of Amirli which had been under the siege of Islamic State militants for over two months in Saladin ,Iraq on September1, 2014. Supported by Kurdish forces and Shiite militias, the Iraqi army launched an offensive shortly after the U.S. carried out airstrikes against Islamic State (IS) positions near the town, and dropped aid for the nearly 20,000 Shiite Turkmen trapped in Amirli. The government forces and Kurdish peshmerga forces have been fighting against the militant group to block their advance. (Photo by Stringer/Anadolu Agency/Getty Images)

SALADIN, IRAQ - SEPTEMBER 1: A Shiite militant aims behind a wall in Amirli after Iraqi forces have entered the northern town of Amirli which had been under the siege of Islamic State militants for over two months in Saladin ,Iraq on September 1, 2014. Supported by Kurdish forces and Shiite militias, the Iraqi army launched an offensive shortly after the U.S. carried out airstrikes against Islamic State (IS) positions near the town, and dropped aid for the nearly 20,000 Shiite Turkmen trapped in Amirli. The government forces and Kurdish peshmerga forces have been fighting against the militant group to block their advance. (Photo by Stringer/Anadolu Agency/Getty Images)

SALADIN ,IRAQ - SEPTEMBER 1: Iraqi army forces and Shiite militias attend convoy as Iraqi Prime Minister Nouri al-Maliki arrives Amirli town after Iraqi armed forces have entered the northern town of Amirli which had been under the siege of Islamic State militants for over two months in Saladin ,Iraq on September 1, 2014. Supported by Kurdish forces and Shiite militias, the Iraqi army launched an offensive shortly after the U.S. carried out airstrikes against Islamic State (IS) positions near the town, and dropped aid for the nearly 20,000 Shiite Turkmen trapped in Amirli. (Photo by Stringer/Anadolu Agency/Getty Images)

SALADIN ,IRAQ - SEPTEMBER 1: Shiite militias and Iraqi army forces distribute foods at the convoy as Iraqi Prime Minister Nouri al-Maliki arrives Amirli town after Iraqi armed forces have entered the northern town of Amirli which had been under the siege of Islamic State militants for over two months in Saladin ,Iraq on September 1, 2014. Supported by Kurdish forces and Shiite militias, the Iraqi army launched an offensive shortly after the U.S. carried out airstrikes against Islamic State (IS) positions near the town, and dropped aid for the nearly 20,000 Shiite Turkmen trapped in Amirli. (Photo by Stringer/Anadolu Agency/Getty Images)

An Iraqi militia fighter from Shiite cleric Moqtada al-Sadr's Saraya al-Salam (Peace Brigade), fires a mortar during heavy clashes with Islamic State (IS) fighters in Tuz Khurmatu in Salaheddin province about 88 kilometres (55 miles) south of Kirkuk on August 31, 2014. Iraqi forces broke through to the jihadist-besieged Shiite town of Amerli, where thousands of people have been trapped for more than two months with dwindling food and water supplies. AFP PHOTO/ JM Lopez (Photo credit should read JM LOPEZ/AFP/Getty Images)

KAHIR FRONT LINE, ERBIL, IRAQ - 2014/08/26: Peshmerga soldiers watch and wait for the Islamic state to attack. The Khazir front line which is 30km from Erbil, the capital city of Kurdistan, marks the point in between the two opposing forces. The Khazir Refugee camp also next to the front line stands empty after the advance of the Islamic State. (Photo by Martin Alan Smith/Pacific Press/LightRocket via Getty Images)

KAHIR FRONT LINE, ERBIL, IRAQ - 2014/08/26: Peshmerga soldiers watch and wait for the Islamic state to attack. The Khazir front line which is 30km from Erbil, the capital city of Kurdistan, marks the point in between the two opposing forces. The Khazir Refugee camp also next to the front line stands empty after the advance of the Islamic State. (Photo by Martin Alan Smith/Pacific Press/LightRocket via Getty Images)

US President Barack Obama speaks in the Brady Press Briefing Room at the White House in Washington, DC, August 28, 2014. Obama said that because of airstrikes ISIS is losing arms and equipment. AFP PHOTO / Saul LOEB (Photo credit should read SAUL LOEB/AFP/Getty Images)

KHAZIR FRONTLINE, KRG, IRAQ - 2014/08/26: A Peshmerga officer visits the Khazir Frontline. Khazir refugee camp is located outside Kalak, a town halfway on the road between Erbil and Mosul. It was overrun by ISIS militants on the 7th of August following an unprecedented push of the Caliphate into Kurdish territory. Its thousands of Iraqi and Arab refugees were forced to flee again as the now deserted camp has become the new frontline between the Peshmerga and ISIS. It is the theatre of frequent U.S. airstrikes that have helped halt the ISIS advance into a stalemate situation. (Photo by Vianney Le Caer/Pacific Press/LightRocket via Getty Images)

KHAZIR FRONTLINE, KRG, IRAQ - 2014/08/26: A Peshmerga soldier makes a victory sign on top of a bunker at the Khazir Frontline. Khazir refugee camp is located outside Kalak, a town halfway on the road between Erbil and Mosul. It was overrun by ISIS militants on the 7th of August following an unprecedented push of the Caliphate into Kurdish territory. Its thousands of Iraqi and Arab refugees were forced to flee again as the now deserted camp has become the new frontline between the Peshmerga and ISIS. It is the theatre of frequent U.S. airstrikes that have helped halt the ISIS advance into a stalemate situation. (Photo by Vianney Le Caer/Pacific Press/LightRocket via Getty Images)

MOSUL, IRAQ - AUGUST 26: August 25, 2014 dated pictures show Peshmerga forces' ongoing progression to fight against army forces led by Islamic State (IS) and seize to regain areas in Mosul. Peshmerga forces write on the walls their names and phone numbers in Al-Bakir neighborhood of Mosul, Iraq on August 25, 2014. (Photo by Ensar Ozdemir/Anadolu Agency/Getty Images)

MOSUL, IRAQ - AUGUST 26: August 25, 2014 dated pictures show Peshmerga forces' ongoing progression to fight against army forces led by Islamic State (IS) and seize to regain areas in Mosul. A Peshmerga targeting a point by a M16 in Al-Bakir neighborhood of Mosul, Iraq on August 25, 2014. (Photo by Ensar Ozdemir/Anadolu Agency/Getty Images)

MOSUL, IRAQ - AUGUST 26: August 25, 2014 dated pictures show Peshmerga forces' ongoing progression to fight against army forces led by Islamic State (IS) and seize to regain areas in Mosul. Peshmerga forces patrol the area in Al-Bakir neighborhood of Mosul, Iraq on August 25, 2014. (Photo by Ensar Ozdemir/Anadolu Agency/Getty Images)

TO GO WITH AFP STORY BY SERENE ASSIR Displaced Iraqi children who fled Wadi Osaj village near Jalawla as battles between peshmerga and Islamic State (IS) jihadists broke out play as they take shelter in a village near the Diyala province town of Khaniqin on August 25, 2014. Only the scattered voices of Peshmerga fighters break the silence of the Iraqi village of Wadi Osaj, where mud and cement block houses stand empty and locked after residents fled, as Kurdish troops battle to wrest the Jalawla area from the control of the brutal jihadist Islamic State (IS) group. AFP PHOTO / ALI AL-SAADI (Photo credit should read ALI AL-SAADI/AFP/Getty Images)

ERBIL, KRG, IRAQ - 2014/08/25: Christian refugee children take part in religious activities (chants and prayers) at Bazar International Shopping Mall. Bazar International Shopping Mall is an unfinished building that have been left to decay. Its Christian manager, Mr Nazar Hana has invited refugee families to take shelter in the upper floors and provide them with food. So far, up to 1 000 people have gathered there and more are expected in the following days. (Photo by Vianney Le Caer/Pacific Press/LightRocket via Getty Images)

Displaced Iraqis who fled Wadi Osaj village near Jalawla, as battles between peshmerga and Islamic State (IS) jihadists broke out, take shelter in a village near the Diyala province town of Khaniqin on August 25, 2014. Kurdish forces backed by Iraqi air support retook three villages in the Jalawla area, as well as a main road used by jihadists to transport fighters and supplies, peshmerga members said. AFP PHOTO / ALI AL-SAADI (Photo credit should read ALI AL-SAADI/AFP/Getty Images)

DOHUK, IRAQ - AUGUST 25: Yezidis live difficult conditions in tents, in Zakho district, a few kilometers from the Iraqi-Turkish border, Dohuk on August 25, 2014. Yezidis fled their home due to the assaults of army groups led by Islamic State (IS), formerly known as ISIL, take shelter banks of river to supply water in Zakho. Some of them escape to their holy Sheiks's tombs for taking shelter. Islamic State fighters captured Iraq's Sinjar and Rabia in the Nineveh province after fierce clashes, forcing thousands of Iraqis including Turkmen, Arabs and Yezidis to flee. (Photo by Ensar Ozdemir/Anadolu Agency/Getty Images)

DOHUK, IRAQ - AUGUST 25: Yezidi woman tries to cook the meal in Zakho district, a few kilometers from the Iraqi-Turkish border, Dohuk on August 25, 2014. Yezidis fled their home due to the assaults of army groups led by Islamic State (IS), formerly known as ISIL, take shelter banks of river to supply water in Zakho. Some of them escape to their holy Sheiks's tombs for taking shelter. Islamic State fighters captured Iraq's Sinjar and Rabia in the Nineveh province after fierce clashes, forcing thousands of Iraqis including Turkmen, Arabs and Yezidis to flee. (Photo by Ensar Ozdemir/Anadolu Agency/Getty Images)

DOHUK, IRAQ - AUGUST 25: A Yezidi child cry among the tents in Zakho district, a few kilometers from the Iraqi-Turkish border, Dohuk on August 25, 2014. Yezidis fled their home due to the assaults of army groups led by Islamic State (IS), formerly known as ISIL, take shelter banks of river to supply water in Zakho. Some of them escape to their holy Sheiks's tombs for taking shelter. Islamic State fighters captured Iraq's Sinjar and Rabia in the Nineveh province after fierce clashes, forcing thousands of Iraqis including Turkmen, Arabs and Yezidis to flee. (Photo by Ensar Ozdemir/Anadolu Agency/Getty Images)

DOHUK, IRAQ - AUGUST 25: Yezidi children enjoy in small pool in Zakho district, a few kilometers from the Iraqi-Turkish border, Dohuk on August 25, 2014. Yezidis fled their home due to the assaults of army groups led by Islamic State (IS), formerly known as ISIL, take shelter banks of river to supply water in Zakho. Some of them escape to their holy Sheiks's tombs for taking shelter. Islamic State fighters captured Iraq's Sinjar and Rabia in the Nineveh province after fierce clashes, forcing thousands of Iraqis including Turkmen, Arabs and Yezidis to flee. (Photo by Ensar Ozdemir/Anadolu Agency/Getty Images)

ZAKHO, KRG, IRAQ - 2014/08/24: Yazidi refugees and local Kurdish youths take a bath from the scorching temperatures and enjoy swimming and diving in the Euphrates River at Delal Bridge near Delal Refugee Camp. The Delal refugee camp sits within walking distance from the city center, with the Delal Bridge overlooking the Euphrates River. It accommodates more than 1,000 Yazidi refugee families that have fled Sinjar starting August. It is roughly estimated that there are 100,000 Yazidi refugees seeking shelter in schools, under construction buildings and camps located around the city. (Photo by Vianney Le Caer/Pacific Press/LightRocket via Getty Images)

ZAKHO, KRG, IRAQ - 2014/08/24: Yazidi refugees and local Kurdish youths take a bath from the scorching temperatures and enjoy swimming and diving in the Euphrates River at Delal Bridge near Delal Refugee Camp. The Delal refugee camp sits within walking distance from the city center, with the Delal Bridge overlooking the Euphrates River. It accommodates more than 1,000 Yazidi refugee families that have fled Sinjar starting August. It is roughly estimated that there are 100,000 Yazidi refugees seeking shelter in schools, under construction buildings and camps located around the city. (Photo by Vianney Le Caer/Pacific Press/LightRocket via Getty Images)

ZAKHO, KRG, IRAQ - 2014/08/24: Yazidi refugees at Delal Refugee Camp in Zakho. The Delal refugee camp sits within walking distance from the city center and It accommodates more than 1,000 Yazidi refugee families that have fled Sinjar starting August. It is roughly estimated that there are 100,000 Yazidi refugees seeking shelter in schools, under construction buildings and camps located around the city. (Photo by Vianney Le Caer/Pacific Press/LightRocket via Getty Images)

MOSUL, IRAQ - AUGUST 24: A Kurdish tank stands guard against to army forces led by Islamic State (IS) in Mosul, Iraq on 24 August, 2014. There are 2 km distance between the region of Kurdish peshmerga and army groups led by Islamic State deploy, on Arbil-Mosul road in Hazer region and many Kurdish peshmergas patrol on the region. (Photo by Sivan Siddik/Anadolu Agency/Getty Images)

ROCHESTER, NH - AUGUST 24: Diane Foley receives a hug following a special mass in remembrance of her son James Foley at Our Lady of the Rosary Church for August 24, 2014 in Rochester, New Hampshire. Foley was recently executed by ISIS Islamic militants in Syria, with the militants reportedly saying it was is retaliation for U.S. airstrikes In Iraq. (Photo by Darren McCollester/Getty Images)

ROCHESTER, NH - AUGUST 24: People attend a special mass in remembrance of journalist James Foley at Our Lady of the Rosary Church for August 24, 2014 in Rochester, New Hampshire. Foley was recently executed by ISIS Islamic militants in Syria, with the militants reportedly saying it was is retaliation for U.S. airstrikes In Iraq. (Photo by Darren McCollester/Getty Images)

ROCHESTER, NH - AUGUST 24: People attend a special mass in remembrance of journalist James Foley at Our Lady of the Rosary Church for August 24, 2014 in Rochester, New Hampshire. Foley was recently executed by ISIS Islamic militants in Syria, with the militants reportedly saying it was is retaliation for U.S. airstrikes In Iraq. (Photo by Darren McCollester/Getty Images)

DIYALA, IRAK - AUGUST 24: Kurdish Peshmergas bombing to area of Islamic State during the fight against IS militants to regain the control of the town of Celavle in Diyala province, Iraq, on August 24, 2014. Diyala's Celavle town invaded by IS militants on August 11 after then armed Peshmerga forces seize to regain the town. (Photo by Feriq Ferec/Anadolu Agency/Getty Images)

DUHOK, IRAQ - 2014/08/23: Four Yezidi girls brush their teeth by the side of the road. These Yezidi Refugees are living by the side of the road under a highway bridge in Duhok, Iraq. The Yezidi refugees who fled from the city of Sinjar to the Sinjar mountains under threat of death from the Islamic State. The Yezidi refugees live in an an under construction building and under bridge on the outskirts of Duhok City. They fled from the town of Sinjar and live in mountain range without food and water due to the death threat of the Islamic State. The YPG Peshmerga forces rescued and take them though a safe corridor into Syria then back to Iraq particularly in Duhok where they are now sheltered. (Photo by Martin Alan Smith/Pacific Press/LightRocket via Getty Images)

DUHOK, IRAQ - 2014/08/23: A baby living by the side of the road. The Yezidi refugees live in an an under construction building and under bridge on the outskirts of Duhok City. They fled from the town of Sinjar and live in mountain range without food and water due to the death threat of the Islamic State. The YPG Peshmerga forces rescued and take them though a safe corridor into Syria then back to Iraq particularly in Duhok where they are now sheltered. (Photo by Martin Alan Smith/Pacific Press/LightRocket via Getty Images)

DOHUK, KRG, IRAQ - 2014/08/23: A young Yazidi refugee from Sinjar lives beneath a motorway underpass located at the entrance of the city of Dohuk. Yazidis were forced to exile after ISIS pushed to Sinjar, a town located West of Mosul. They were starving in Sinjar mountain range, when they were rescued by YPG fighters (an offshoot of the PKK) and offered safe passage to Syrian Kurdistan. They cannot be all accommodated in refugee camps, thus, some sheltered in under construction buildings and a bridge underpass. (Photo by Vianney Le Caer/Pacific Press/LightRocket via Getty Images)

DOHUK, KRG, IRAQ - 2014/08/23: Yazidi refugees from Sinjar live beneath a motorway underpass located at the entrance of the city of Dohuk. Yazidis were forced to exile after ISIS pushed to Sinjar, a town located West of Mosul. They were starving in Sinjar mountain range, when they were rescued by YPG fighters (an offshoot of the PKK) and offered safe passage to Syrian Kurdistan. They cannot be all accommodated in refugee camps, thus, some sheltered in under construction buildings and a bridge underpass. (Photo by Vianney Le Caer/Pacific Press/LightRocket via Getty Images)

DOHUK, KRG, IRAQ - 2014/08/23: Yazidi refugees from Sinjar live beneath a motorway underpass located at the entrance of the city of Dohuk. Yazidis were forced to exile after ISIS pushed to Sinjar, a town located West of Mosul. They were starving in Sinjar mountain range, when they were rescued by YPG fighters (an offshoot of the PKK) and offered safe passage to Syrian Kurdistan. They cannot be all accommodated in refugee camps, thus, some sheltered in under construction buildings and a bridge underpass. (Photo by Vianney Le Caer/Pacific Press/LightRocket via Getty Images)

DOHUK, IRAQ - AUGUST 25: Yezidi woman tries to cook the meal in Zakho district, a few kilometers from the Iraqi-Turkish border, Dohuk on August 25, 2014. Yezidis fled their home due to the assaults of army groups led by Islamic State (IS), formerly known as ISIL, take shelter banks of river to supply water in Zakho. Some of them escape to their holy Sheiks's tombs for taking shelter. Islamic State fighters captured Iraq's Sinjar and Rabia in the Nineveh province after fierce clashes, forcing thousands of Iraqis including Turkmen, Arabs and Yezidis to flee. (Photo by Ensar Ozdemir/Anadolu Agency/Getty Images)

DOHUK, IRAQ - AUGUST 25: A Yezidi child cry among the tents in Zakho district, a few kilometers from the Iraqi-Turkish border, Dohuk on August 25, 2014. Yezidis fled their home due to the assaults of army groups led by Islamic State (IS), formerly known as ISIL, take shelter banks of river to supply water in Zakho. Some of them escape to their holy Sheiks's tombs for taking shelter. Islamic State fighters captured Iraq's Sinjar and Rabia in the Nineveh province after fierce clashes, forcing thousands of Iraqis including Turkmen, Arabs and Yezidis to flee. (Photo by Ensar Ozdemir/Anadolu Agency/Getty Images)

DOHUK, IRAQ - AUGUST 25: Yezidis live difficult conditions in tents, in Zakho district, a few kilometers from the Iraqi-Turkish border, Dohuk on August 25, 2014. Yezidis fled their home due to the assaults of army groups led by Islamic State (IS), formerly known as ISIL, take shelter banks of river to supply water in Zakho. Some of them escape to their holy Sheiks's tombs for taking shelter. Islamic State fighters captured Iraq's Sinjar and Rabia in the Nineveh province after fierce clashes, forcing thousands of Iraqis including Turkmen, Arabs and Yezidis to flee. (Photo by Ensar Ozdemir/Anadolu Agency/Getty Images)

DOHUK, IRAQ - AUGUST 25: Yezidi children enjoy bank a muddy rivulet in Zakho district, a few kilometers from the Iraqi-Turkish border, Dohuk on August 25, 2014. Yezidis fled their home due to the assaults of army groups led by Islamic State (IS), formerly known as ISIL, take shelter banks of river to supply water in Zakho. Some of them escape to their holy Sheiks's tombs for taking shelter. Islamic State fighters captured Iraq's Sinjar and Rabia in the Nineveh province after fierce clashes, forcing thousands of Iraqis including Turkmen, Arabs and Yezidis to flee. (Photo by Ensar Ozdemir/Anadolu Agency/Getty Images)

DOHUK, IRAQ - AUGUST 25: Yezidi children enjoy bank a muddy rivulet in Zakho district, a few kilometers from the Iraqi-Turkish border, Dohuk on August 25, 2014. Yezidis fled their home due to the assaults of army groups led by Islamic State (IS), formerly known as ISIL, take shelter banks of river to supply water in Zakho. Some of them escape to their holy Sheiks's tombs for taking shelter. Islamic State fighters captured Iraq's Sinjar and Rabia in the Nineveh province after fierce clashes, forcing thousands of Iraqis including Turkmen, Arabs and Yezidis to flee. (Photo by Ensar Ozdemir/Anadolu Agency/Getty Images)

ZAKHO, KRG, IRAQ - 2014/08/24: Yazidi refugees at Delal Refugee Camp in Zakho. The Delal refugee camp sits within walking distance from the city center and It accommodates more than 1,000 Yazidi refugee families that have fled Sinjar starting August. It is roughly estimated that there are 100,000 Yazidi refugees seeking shelter in schools, under construction buildings and camps located around the city. (Photo by Vianney Le Caer/Pacific Press/LightRocket via Getty Images)

ZAKHO, KRG, IRAQ - 2014/08/24: Yazidi refugees at Delal Refugee Camp in Zakho. The Delal refugee camp sits within walking distance from the city center and It accommodates more than 1,000 Yazidi refugee families that have fled Sinjar starting August. It is roughly estimated that there are 100,000 Yazidi refugees seeking shelter in schools, under construction buildings and camps located around the city. (Photo by Vianney Le Caer/Pacific Press/LightRocket via Getty Images)

DIYALA, IRAK - AUGUST 24: Kurdish Peshmergas fight against Islamic State (IS) militants to regain the control of the town of Celavle in Diyala province, Iraq, on August 24, 2014. Diyala's Celavle town invaded by IS militants on August 11 after then armed Peshmerga forces seize to regain the town. (Photo by Feriq Ferec/Anadolu Agency/Getty Images)

DIYALA, IRAK - AUGUST 24: A damaged military ambulance of Kurdish Peshmergas during the fight against IS militants to regain the control of the town of Celavle in Diyala province, Iraq, on August 24, 2014. Diyala's Celavle town invaded by IS militants on August 11 after then armed Peshmerga forces seize to regain the town. (Photo by Feriq Ferec/Anadolu Agency/Getty Images)

DIYALA, IRAK - AUGUST 24: Kurdish Peshmergas bombing to area of Islamic State during the fight against IS militants to regain the control of the town of Celavle in Diyala province, Iraq, on August 24, 2014. Diyala's Celavle town invaded by IS militants on August 11 after then armed Peshmerga forces seize to regain the town. (Photo by Feriq Ferec/Anadolu Agency/Getty Images)

DOHUK, KRG, IRAQ - 2014/08/23: A Yazidi refugee from Sinjar lives beneath a motorway underpass located at the entrance of the city of Dohuk. Yazidis were forced to exile after ISIS pushed to Sinjar, a town located West of Mosul. They were starving in Sinjar mountain range, when they were rescued by YPG fighters (an offshoot of the PKK) and offered safe passage to Syrian Kurdistan. They cannot be all accommodated in refugee camps, thus, some sheltered in under construction buildings and a bridge underpass. (Photo by Vianney Le Caer/Pacific Press/LightRocket via Getty Images)

DOHUK, KRG, IRAQ - 2014/08/23: A young Yazidi refugee from Sinjar lives beneath a motorway underpass located at the entrance of the city of Dohuk. Yazidis were forced to exile after ISIS pushed to Sinjar, a town located West of Mosul. They were starving in Sinjar mountain range, when they were rescued by YPG fighters (an offshoot of the PKK) and offered safe passage to Syrian Kurdistan. They cannot be all accommodated in refugee camps, thus, some sheltered in under construction buildings and a bridge underpass. (Photo by Vianney Le Caer/Pacific Press/LightRocket via Getty Images)

Iraqi Shiite volunteers from the University of Basra that have joined government forces to fight Sunni jihadists from the Islamic State (IS) take part in a graduation ceremony in the southern port city of Basra on August 23, 2014. Jihadist-led militants launched a major offensive in June, overrunning large areas of five provinces and sweeping security forces aside. AFP PHOTO / HAIDAR MOHAMMED ALI (Photo credit should read HAIDAR MOHAMMED ALI/AFP/Getty Images)

Displaced Iraqi Shiite children, who fled their homes a few weeks ago, due to attacks by Islamic State (IS) jihadists in the northern city of Mosul, rest outside a tent at the Bhrka camp ten kilometers west of Arbil, the capital of northern Iraq's Kurdistan autonomous region, on August 23, 2014. The United States launched an air campaign against IS in Iraq on April 8, and has since carried out more than 90 strikes that have largely been in support of Kurdish forces in the north, drawing calls for operations elsewhere in the country. AFP PHOTO/ AHMAD AL-RUBAYE (Photo credit should read AHMAD AL-RUBAYE/AFP/Getty Images)

Displaced Iraqi Shiite children, who fled their homes a few weeks ago, due to attacks by Islamic State (IS) jihadists in the northern city of Mosul, rest outside a tent at the Bhrka camp ten kilometers west of Arbil, the capital of northern Iraq's Kurdistan autonomous region, on August 23, 2014. The United States launched an air campaign against IS in Iraq on April 8, and has since carried out more than 90 strikes that have largely been in support of Kurdish forces in the north, drawing calls for operations elsewhere in the country. AFP PHOTO/ AHMAD AL-RUBAYE (Photo credit should read AHMAD AL-RUBAYE/AFP/Getty Images)

Young displaced Iraqi Shiite children, who fled their homes a few weeks ago, due to attacks by Islamic State (IS) jihadists in the northern city of Mosul, stand outside a tent at the Bhrka camp ten kilometers west of Arbil, the capital of northern Iraq's Kurdistan autonomous region, on August 23, 2014. The United States launched an air campaign against IS in Iraq on April 8, and has since carried out more than 90 strikes that have largely been in support of Kurdish forces in the north, drawing calls for operations elsewhere in the country. AFP PHOTO/ AHMAD AL-RUBAYE (Photo credit should read AHMAD AL-RUBAYE/AFP/Getty Images)

A Shiite Muslim fighter, loyal to Iraqi Shiite cleric Moqtada al-Sadr, takes part in a last combat training near the city of Najaf on August 23, 2014, before joining the government forces to fight Islamic State (IS) jihadists in the Jurf al-Sakhr area, south of Baghdad. Iraqi officials worked to calm soaring tensions after the killing of 70 people at a Sunni mosque, as Washington branded the beheading of an American journalist a 'terrorist attack.' AFP PHOTO / HAIDAR HAMDANI (Photo credit should read HAIDAR HAMDANI/AFP/Getty Images)

Shiite Muslim fighters, loyal to Iraqi Shiite cleric Moqtada al-Sadr, take part in a last combat training near the city of Najaf on August 23, 2014, before joining the government forces to fight Islamic State (IS) jihadists in the Jurf al-Sakhr area, south of Baghdad. Iraqi officials worked to calm soaring tensions after the killing of 70 people at a Sunni mosque, as Washington branded the beheading of an American journalist a 'terrorist attack.' AFP PHOTO / HAIDAR HAMDANI (Photo credit should read HAIDAR HAMDANI/AFP/Getty Images)

A Shiite Muslim fighter, loyal to Iraqi Shiite cleric Moqtada al-Sadr, takes part in a last combat training near the city of Najaf on August 23, 2014, before joining the government forces to fight Islamic State (IS) jihadists in the Jurf al-Sakhr area, south of Baghdad. Iraqi officials worked to calm soaring tensions after the killing of 70 people at a Sunni mosque, as Washington branded the beheading of an American journalist a 'terrorist attack.' AFP PHOTO / HAIDAR HAMDANI (Photo credit should read HAIDAR HAMDANI/AFP/Getty Images)

A Shiite Muslim fighter, loyal to Iraqi Shiite cleric Moqtada al-Sadr, takes part in a last combat training near the city of Najaf on August 23, 2014, before joining the government forces to fight Islamic State (IS) jihadists in the Jurf al-Sakhr area, south of Baghdad. Iraqi officials worked to calm soaring tensions after the killing of 70 people at a Sunni mosque, as Washington branded the beheading of an American journalist a 'terrorist attack.' AFP PHOTO / HAIDAR HAMDANI (Photo credit should read HAIDAR HAMDANI/AFP/Getty Images)

A Shiite Muslim fighter, loyal to Iraqi Shiite cleric Moqtada al-Sadr, takes part in a last combat training near the city of Najaf on August 23, 2014, before joining the government forces to fight Islamic State (IS) jihadists in the Jurf al-Sakhr area, south of Baghdad. Iraqi officials worked to calm soaring tensions after the killing of 70 people at a Sunni mosque, as Washington branded the beheading of an American journalist a 'terrorist attack.' AFP PHOTO / HAIDAR HAMDANI (Photo credit should read HAIDAR HAMDANI/AFP/Getty Images)

A Shiite Muslim fighter, loyal to Iraqi Shiite cleric Moqtada al-Sadr, takes part in a last combat training near the city of Najaf on August 23, 2014, before joining the government forces to fight Islamic State (IS) jihadists in the Jurf al-Sakhr area, south of Baghdad. Iraqi officials worked to calm soaring tensions after the killing of 70 people at a Sunni mosque, as Washington branded the beheading of an American journalist a 'terrorist attack.' AFP PHOTO / HAIDAR HAMDANI (Photo credit should read HAIDAR HAMDANI/AFP/Getty Images)

A Shiite Muslim fighter, loyal to Iraqi Shiite cleric Moqtada al-Sadr, takes part in a last combat training near the city of Najaf on August 23, 2014, before joining the government forces to fight Islamic State (IS) jihadists in the Jurf al-Sakhr area, south of Baghdad. Iraqi officials worked to calm soaring tensions after the killing of 70 people at a Sunni mosque, as Washington branded the beheading of an American journalist a 'terrorist attack.' AFP PHOTO / HAIDAR HAMDANI (Photo credit should read HAIDAR HAMDANI/AFP/Getty Images)

Shiite Muslim fighters, loyal to Iraqi Shiite cleric Moqtada al-Sadr, take part in a last combat training near the city of Najaf on August 23, 2014, before joining the government forces to fight Islamic State (IS) jihadists in the Jurf al-Sakhr area, south of Baghdad. Iraqi officials worked to calm soaring tensions after the killing of 70 people at a Sunni mosque, as Washington branded the beheading of an American journalist a 'terrorist attack.' AFP PHOTO / HAIDAR HAMDANI (Photo credit should read HAIDAR HAMDANI/AFP/Getty Images)

A Shiite Muslim fighter, loyal to Iraqi Shiite cleric Moqtada al-Sadr, takes part in a last combat training near the city of Najaf on August 23, 2014, before joining the government forces to fight Islamic State (IS) jihadists in the Jurf al-Sakhr area, south of Baghdad. Iraqi officials worked to calm soaring tensions after the killing of 70 people at a Sunni mosque, as Washington branded the beheading of an American journalist a 'terrorist attack.' AFP PHOTO / HAIDAR HAMDANI (Photo credit should read HAIDAR HAMDANI/AFP/Getty Images)

Shiite Muslim fighters, loyal to Iraqi Shiite cleric Moqtada al-Sadr, take part in a last combat training near the city of Najaf on August 23, 2014, before joining the government forces to fight Islamic State (IS) jihadists in the Jurf al-Sakhr area, south of Baghdad. Iraqi officials worked to calm soaring tensions after the killing of 70 people at a Sunni mosque, as Washington branded the beheading of an American journalist a 'terrorist attack.' AFP PHOTO / HAIDAR HAMDANI (Photo credit should read HAIDAR HAMDANI/AFP/Getty Images)

A Shiite Muslim fighter, loyal to Iraqi Shiite cleric Moqtada al-Sadr, takes part in a last combat training near the city of Najaf on August 23, 2014, before joining the government forces to fight Islamic State (IS) jihadists in the Jurf al-Sakhr area, south of Baghdad. Iraqi officials worked to calm soaring tensions after the killing of 70 people at a Sunni mosque, as Washington branded the beheading of an American journalist a 'terrorist attack.' AFP PHOTO / HAIDAR HAMDANI (Photo credit should read HAIDAR HAMDANI/AFP/Getty Images)

Shiite Muslim fighters, loyal to Iraqi Shiite cleric Moqtada al-Sadr, take part in a last combat training near the city of Najaf on August 23, 2014, before joining the government forces to fight Islamic State (IS) jihadists in the Jurf al-Sakhr area, south of Baghdad. Iraqi officials worked to calm soaring tensions after the killing of 70 people at a Sunni mosque, as Washington branded the beheading of an American journalist a 'terrorist attack.' AFP PHOTO / HAIDAR HAMDANI (Photo credit should read HAIDAR HAMDANI/AFP/Getty Images)

TO GO WITH AFP STORY BY SERENE ASSIR A young Kurdish girl flashes the V sign for victory inside the mosque where she and her family sought refuge in the village of Hajyawa in Iraq's Sulaimaniyah district on August 21, 2014, after fleeing their first place of refuge in Makhmur following an offensive by Islamic State (IS) militants. Families who once fled a massive Turkish crackdown on Kurdish rebels in the 1990s now rest in a northern Iraq mosque after escaping brutal jihadists, longing to return home. AFP PHOTO/AHMAD AL-RUBAYE (Photo credit should read AHMAD AL-RUBAYE/AFP/Getty Images)

TO GO WITH AFP STORY BY SERENE ASSIR A young Kurdish girl poses for a picture at the mosque where she and her family sought refuge in the village of Hajyawa in Iraq's Sulaimaniyah district on August 21, 2014, after fleeing their first place of refuge in Makhmur following an offensive by Islamic State (IS) militants. Families who once fled a massive Turkish crackdown on Kurdish rebels in the 1990s now rest in a northern Iraq mosque after escaping brutal jihadists, longing to return home. AFP PHOTO/AHMAD AL-RUBAYE (Photo credit should read AHMAD AL-RUBAYE/AFP/Getty Images)

TO GO WITH AFP STORY BY SERENE ASSIR A Kurdish woman bathes her son at the mosque where they sought refuge in the village of Hajyawa in Iraq's Sulaimaniyah district on August 21, 2014, after fleeing their first place of refuge in Makhmur following an offensive by Islamic State (IS) militants. Families who once fled a massive Turkish crackdown on Kurdish rebels in the 1990s now rest in a northern Iraq mosque after escaping brutal jihadists, longing to return home. AFP PHOTO/AHMAD AL-RUBAYE (Photo credit should read AHMAD AL-RUBAYE/AFP/Getty Images)

SIRNAK, TURKEY - AUGUST 20: A Yezidi woman fleeing Sinjar town of Mosul due to the attacks of Islamic State-led armed groups, sits on a mattress inside a classroom of a local primary school which is used as shelter, in Ortasu village of Sirnak, Turkey on August 20, 2014. (Photo by Huseyin Bagis/Anadolu Agency/Getty Images)

SIRNAK, TURKEY - AUGUST 20: Health officer inoculates a baby, who fled from attacks of army groups led by Islamic State (IS) formerly known ISIL and takes shelter to a school in Sirnak, Turkey on 20 August, 2014. (Photo by Huseyin Bagis/Anadolu Agency/Getty Images)

SIRNAK, TURKEY - AUGUST 20: Iraqi Yazidi baby, who fled from the attacks of Islamic State (IS) formerly known as ISIL and takes shelter to a school in Sirnak, is treated in classroom, Turkey on 20 August, 2014. (Photo by Huseyin Bagis/Anadolu Agency/Getty Images)

SIRNAK, TURKEY - AUGUST 20: Iraqi Yazidis, fled from the attacks of army groups led by Islamic State (IS), formerly known as ISIL, take shelter to schools in Sirnak, Turkey on 20 August, 2014. (Photo by Huseyin Bagis/Anadolu Agency/Getty Images)

ARBIL, IRAQ - AUGUST 20: An image of Masoud Barzani is hang near the Kalashikovs at Arbil Gun Bazaar in Kasnazan near the Arbil, Iraq on August 20, 2014. Dealers say that sales of weapons at the market have slowed ever since the United States vowed to help Kurdish Peshmerga forces defend the largely autonomous region of northern Iraq from Islamic State militants. Before the U.S. airstrikes, there was panic-buying at the gun bazaar. Kurdish men snapped up any weapons on offer, fearing the Islamic State militants would roll into Arbil. Since the U.S. began conducting airstrikes on Aug. 8 against militants of the Islamic State group, gun sales at the bazaar have flattened, and the dealers have cut their prices by a third or even a half. (Photo by Ahmet Izgi/Anadolu Agency/Getty Images)

ARBIL, IRAQ - AUGUST 20: Weapons are seen at the Arbil Gun Bazaar in Kasnazan near the Arbil, Iraq on August 20, 2014. Dealers say that sales of weapons at the market have slowed ever since the United States vowed to help Kurdish Peshmerga forces defend the largely autonomous region of northern Iraq from Islamic State militants. Before the U.S. airstrikes, there was panic-buying at the gun bazaar. Kurdish men snapped up any weapons on offer, fearing the Islamic State militants would roll into Arbil. Since the U.S. began conducting airstrikes on Aug. 8 against militants of the Islamic State group, gun sales at the bazaar have flattened, and the dealers have cut their prices by a third or even a half. (Photo by Ahmet Izgi/Anadolu Agency/Getty Images)

ARBIL, IRAQ - AUGUST 20: Kalashnikovs (AK-47) are seen on a stand at a Arbil Gun Bazaar in Kasnazan near the Arbil, Iraq on August 20, 2014. Dealers say that sales of weapons at the market have slowed ever since the United States vowed to help Kurdish Peshmerga forces defend the largely autonomous region of northern Iraq from Islamic State militants. Before the U.S. airstrikes, there was panic-buying at the gun bazaar. Kurdish men snapped up any weapons on offer, fearing the Islamic State militants would roll into Arbil. Since the U.S. began conducting airstrikes on Aug. 8 against militants of the Islamic State group, gun sales at the bazaar have flattened, and the dealers have cut their prices by a third or even a half. (Photo by Ensar Ozdemir/Anadolu Agency/Getty Images)

ARBIL, IRAQ - AUGUST 20: Bullets are seen at a Arbil Gun Bazaar in Kasnazan near the Arbil, Iraq on August 20, 2014. Dealers say that sales of weapons at the market have slowed ever since the United States vowed to help Kurdish Peshmerga forces defend the largely autonomous region of northern Iraq from Islamic State militants. Before the U.S. airstrikes, there was panic-buying at the gun bazaar. Kurdish men snapped up any weapons on offer, fearing the Islamic State militants would roll into Arbil. Since the U.S. began conducting airstrikes on Aug. 8 against militants of the Islamic State group, gun sales at the bazaar have flattened, and the dealers have cut their prices by a third or even a half. (Photo by Ensar Ozdemir/Anadolu Agency/Getty Images)

GWER, KRG, IRAQ - 2014/08/20: Peshmerga soldiers stand guard at a military outpost located at the entrance of Gwer, Iraq. Gwer is a town located 35 kilometers south of Erbil, the capital of the Kurdistan Regional Government. Following an ISIS offensive, the town fell to the Caliphate on the 7th of August. It was taken back by the Peshmerga on August 10. Gwer was emptied of its population who decided to flee to nearby Erbil or the mountains. It is presently still deserted as only about 80 residents have decided to come back. ISIS forces are still present at the exit of the town. (Photo by Vianney Le Caer/Pacific Press/LightRocket via Getty Images)

GWER, KRG, IRAQ - 2014/08/20: A Peshmerga soldier watches ISIS lines in the distance at a military outpost located at the entrance of Gwer, Iraq. Gwer is a town located 35 kilometers south of Erbil, the capital of the Kurdistan Regional Government. Following an ISIS offensive, the town fell to the Caliphate on the 7th of August. It was taken back by the Peshmerga on August 10. Gwer was emptied of its population who decided to flee to nearby Erbil or the mountains. It is presently still deserted as only about 80 residents have decided to come back. ISIS forces are still present at the exit of the town. (Photo by Vianney Le Caer/Pacific Press/LightRocket via Getty Images)

GWER, KRG, IRAQ - 2014/08/20: A Peshmerga soldier watches ISIS lines in the distance at a military outpost located at the entrance of Gwer, Iraq. Gwer is a town located 35 kilometers south of Erbil, the capital of the Kurdistan Regional Government. Following an ISIS offensive, the town fell to the Caliphate on the 7th of August. It was taken back by the Peshmerga on August 10. Gwer was emptied of its population who decided to flee to nearby Erbil or the mountains. It is presently still deserted as only about 80 residents have decided to come back. ISIS forces are still present at the exit of the town. (Photo by Vianney Le Caer/Pacific Press/LightRocket via Getty Images)

MAKHMOUR, IRAQ - 2014/08/20: An 18 years old PKK fighter comes back to base from patrol at the PKK base in Makhmour. Makhmour is a town located 50 kilometers South of Erbil, the Kurdistan Capital Regional Government once taken by ISIS but redeemed back by the help of PKK Fighters. Turkish PKK fighters were called for help by the Peshmergas to figth with the ISIS, as they are very seasoned on guerilla-style fight. (Photo by Vianney Le Caer/Pacific Press/LightRocket via Getty Images)

MAKHMOUR, IRAQ - 2014/08/20: Nugeen, 45 is a PKK fighter who took part in the recent battle for Makhmour. She is seen posing for a portrait at the PKK base in Makhmour. Makhmour is a town located 50 kilometers South of Erbil, the Kurdistan Capital Regional Government once taken by ISIS but redeemed back by the help of PKK Fighters. Turkish PKK fighters were called for help by the Peshmergas to figth with the ISIS, as they are very seasoned on guerilla-style fight. (Photo by Vianney Le Caer/Pacific Press/LightRocket via Getty Images)

MAKHMOUR, IRAQ - 2014/08/20: An elederly PKK fighter bears his riffle, comes back to the PKK base in Makhmour from a patrol. Makhmour is a town located 50 kilometers South of Erbil, the Kurdistan Capital Regional Government once taken by ISIS but redeemed back by the help of PKK Fighters. Turkish PKK fighters were called for help by the Peshmergas to figth with the ISIS, as they are very seasoned on guerilla-style fight. (Photo by Vianney Le Caer/Pacific Press/LightRocket via Getty Images)

SIRNAK, TURKEY - AUGUST 19: Some of the many thousands of Yezidis, who started to flee from Mount Sinjar in northern Iraq and Zakho city to the surrounding mountains across the border into Turkey to escape the assaults of army groups led by Islamic State (IS), formerly known as ISIL, have arrived in Turkey's Uludere village in the southeastern Sirnak province on August 19, 2014. Islamic State fighters captured Iraq's Sinjar and Rabia in the Nineveh province after fierce clashes, forcing thousands of Iraqis including Turkmen, Arabs and Yezidis to flee. (Photo by Huseyin Bagis/Anadolu Agency/Getty Images)

SIRNAK, TURKEY - AUGUST 19: Some of the many thousands of Yezidis, who started to flee from Mount Sinjar in northern Iraq and Zakho city to the surrounding mountains across the border into Turkey to escape the assaults of army groups led by Islamic State (IS), formerly known as ISIL, have arrived in Turkey's Uludere village in the southeastern Sirnak province on August 19, 2014. Islamic State fighters captured Iraq's Sinjar and Rabia in the Nineveh province after fierce clashes, forcing thousands of Iraqis including Turkmen, Arabs and Yezidis to flee. (Photo by Huseyin Bagis/Anadolu Agency/Getty Images)

SIRNAK, TURKEY - AUGUST 19: Some of the many thousands of Yezidis, who started to flee from Mount Sinjar in northern Iraq and Zakho city to the surrounding mountains across the border into Turkey to escape the assaults of army groups led by Islamic State (IS), formerly known as ISIL, have arrived in Turkey's Uludere village in the southeastern Sirnak province on August 19, 2014. Islamic State fighters captured Iraq's Sinjar and Rabia in the Nineveh province after fierce clashes, forcing thousands of Iraqis including Turkmen, Arabs and Yezidis to flee. (Photo by Huseyin Bagis/Anadolu Agency/Getty Images)

SIRNAK, TURKEY - AUGUST 19: Some of the many thousands of Yezidis, who started to flee from Mount Sinjar in northern Iraq and Zakho city to the surrounding mountains across the border into Turkey to escape the assaults of army groups led by Islamic State (IS), formerly known as ISIL, have arrived in Turkey's Uludere village in the southeastern Sirnak province on August 19, 2014. Islamic State fighters captured Iraq's Sinjar and Rabia in the Nineveh province after fierce clashes, forcing thousands of Iraqis including Turkmen, Arabs and Yezidis to flee. (Photo by Huseyin Bagis/Anadolu Agency/Getty Images)

SIRNAK, TURKEY - AUGUST 19: Some of the many thousands of Yezidis, who started to flee from Mount Sinjar in northern Iraq and Zakho city to the surrounding mountains across the border into Turkey to escape the assaults of army groups led by Islamic State (IS), formerly known as ISIL, have arrived in Turkey's Uludere village in the southeastern Sirnak province on August 19, 2014. Islamic State fighters captured Iraq's Sinjar and Rabia in the Nineveh province after fierce clashes, forcing thousands of Iraqis including Turkmen, Arabs and Yezidis to flee. (Photo by Huseyin Bagis/Anadolu Agency/Getty Images)

SIRNAK, TURKEY - AUGUST 19: Some of the many thousands of Yezidis, who started to flee from Mount Sinjar in northern Iraq and Zakho city to the surrounding mountains across the border into Turkey to escape the assaults of army groups led by Islamic State (IS), formerly known as ISIL, have arrived in Turkey's Uludere village in the southeastern Sirnak province on August 19, 2014. Islamic State fighters captured Iraq's Sinjar and Rabia in the Nineveh province after fierce clashes, forcing thousands of Iraqis including Turkmen, Arabs and Yezidis to flee. (Photo by Huseyin Bagis/Anadolu Agency/Getty Images)

SIRNAK, TURKEY - AUGUST 19: Some of the many thousands of Yezidis, who started to flee from Mount Sinjar in northern Iraq and Zakho city to the surrounding mountains across the border into Turkey to escape the assaults of army groups led by Islamic State (IS), formerly known as ISIL, have arrived in Turkey's Uludere village in the southeastern Sirnak province on August 19, 2014. Islamic State fighters captured Iraq's Sinjar and Rabia in the Nineveh province after fierce clashes, forcing thousands of Iraqis including Turkmen, Arabs and Yezidis to flee. (Photo by Huseyin Bagis/Anadolu Agency/Getty Images)

Displaced Iraqi children look into the camera as health workers administer polio and tetanus vaccines to Iraqis who fled fighting between Islamic State (IS) militants and Iraqi Kurdish fighters in the Mosul and Anbar regions, at a mosque where they are taking refuge in Abu Sukheir, west of the southern Iraqi city of Basra, on August 19, 2014. Tens of thousands of Iraqis have fled their homes after Sunni jihadist from the IS seized several northern towns. AFP PHOTO / HAIDAR MOHAMMED ALI (Photo credit should read HAIDAR MOHAMMED ALI/AFP/Getty Images)

MAKHMOUR, KRG, IRAQ - 2014/08/18: A peshmerga soldier positioned a machine-gun to the ISIS lines at Makhmour frontline. Makhmour is a town 50 kilometers South of Erbil, the capital of the Kurdistan Regional Government. After an ISIS offensive, the town fell to the Caliphate on the 8th of August but taken back by the Peshmerga and PKK fighters on August 10. All people deserted the town and only 10% decided to return. (Photo by Vianney Le Caer/Pacific Press/LightRocket via Getty Images)

MAKHMOUR, KRG, IRAQ - 2014/08/18: A Peshmerga soldier points at a graffiti, written in Kurdish that was defaced by ISIS militants and is now facing their positions at Makhmour frontline. Makhmour is a town 50 kilometers South of Erbil, the capital of the Kurdistan Regional Government. After an ISIS offensive, the town fell to the Caliphate on the 8th of August but taken back by the Peshmerga and PKK fighters on August 10. All people deserted the town and only 10% decided to return. (Photo by Vianney Le Caer/Pacific Press/LightRocket via Getty Images)

MAKHMOUR, KRG, IRAQ - 2014/08/18: Peshmerga soldiers pose for a group portrait at the DPK Peshmerga base. Makhmour is a town 50 kilometers South of Erbil, the capital of the Kurdistan Regional Government. After an ISIS offensive, the town fell to the Caliphate on the 8th of August but taken back by the Peshmerga and PKK fighters on August 10. All people deserted the town and only 10% decided to return. (Photo by Vianney Le Caer/Pacific Press/LightRocket via Getty Images)

MAKHMOUR, KRG, IRAQ - 2014/08/18: A Peshmerga soldier poses for a portrait at the DPK Peshmerga base. Makhmour is a town 50 kilometers South of Erbil, the capital of the Kurdistan Regional Government. After an ISIS offensive, the town fell to the Caliphate on the 8th of August but taken back by the Peshmerga and PKK fighters on August 10. All people deserted the town and only 10% decided to return. (Photo by Vianney Le Caer/Pacific Press/LightRocket via Getty Images)

A Kurdish peshmerga fighter flashes the sign for victory after re-capturing the village of Tel Asquf from Islamic State (IS) militants on the eastern outskirts of Mosul Dam, near the northern city Mosul, on August 18, 2014. Kurdish fighters, backed by Iraqi forces and a new wave of US strikes recaptured the major dam which was the biggest prize yet clawed back from the so-called 'Islamic State' since it launched a major offensive in northern Iraq in June, sweeping aside Iraqi security forces. AFP PHOTO/AHMAD AL-RUBAYE (Photo credit should read AHMAD AL-RUBAYE/AFP/Getty Images)

A Kurdish peshmerga fighter flashes the sign for victory as they head to the front line near Mosul Dam on the outskirts of the northern city of Mosul on August 18, 2014 as fighting continued with Islamic State militants for control of the strategic site. Kurdish fighters, backed by Iraqi forces and a new wave of US strikes recaptured the major dam which was the biggest prize yet clawed back from the so-called 'Islamic State' since it launched a major offensive in northern Iraq in June, sweeping aside Iraqi security forces. AFP PHOTO/AHMAD AL-RUBAYE (Photo credit should read AHMAD AL-RUBAYE/AFP/Getty Images)

A Kurdish peshmerga fighter guards a checkpoint flying the Kurdish flag near Mosul Dam on the outskirts of the northern city of Mosul on August 18, 2014, as fighting with Islamic State (IS) militants continued for control of the strategic site. Kurdish fighters, backed by Iraqi forces and a new wave of US strikes recaptured the major dam which was the biggest prize yet clawed back from the so-called 'Islamic State' since it launched a major offensive in northern Iraq in June, sweeping aside Iraqi security forces. AFP PHOTO/AHMAD AL-RUBAYE (Photo credit should read AHMAD AL-RUBAYE/AFP/Getty Images)

CAIRO, EGYPT - AUGUST 18 : Christians gather at St. Fatima Catholic Church, Cairo to pray for Iraqi Christians who have fled their homes due to assaults of army groups led by Islamic State (IS) on 18, August 2014. (Photo by Mohammed Hossam/Anadolu Agency/Getty Images)

WASHINGTON, DC - AUGUST 18: U.S. President Barack Obama speaks during a press conference in the James Brady Press Briefing Room of the White House in Washington on August 18, 2014. President Obama returned early from his summer vacation to hold a meeting with top advisers on situation in Iraq and violence in Ferguson. (Photo by Basri Sahin/Anadolu Agency/Getty Images)

Peshmerga fighter guard a position on front line of fighting with Islamic State (IS) militants 20 kilometres east of Mosul, on August 18, 2014. Kurdish peshmerga fighters backed by federal forces and US warplanes pressed a counter-offensive Monday against jihadists after retaking Iraq's largest dam, as the United States and Britain stepped up their military involvement. AFP PHOTO/AHMAD AL-RUBAYE (Photo credit should read AHMAD AL-RUBAYE/AFP/Getty Images)

A Peshmerga fighter flashes the sign for victory on top of an armoured vehicle on the front line of fighting with Islamic State (IS) militants 20 kilometres east of Mosul, on August 18, 2014. Kurdish peshmerga fighters backed by federal forces and US warplanes pressed a counter-offensive Monday against jihadists after retaking Iraq's largest dam, as the United States and Britain stepped up their military involvement. AFP PHOTO/AHMAD AL-RUBAYE (Photo credit should read AHMAD AL-RUBAYE/AFP/Getty Images)

Shiite fighters loyal to Iraqi Shiite cleric Moqtada al-Sadr, hold a position as they back the Iraqi army in the fight against Islamic State (IS) militants after re-taking control of an area in the Jurf al-Sakher district about 65 kilometres south of Baghdad on August 18, 2014. Since last week, the United States has conducted strikes on IS positions. AFP PHOTO /ALI AL-SAADI (Photo credit should read ALI AL-SAADI/AFP/Getty Images)

Shiite fighters loyal to Iraqi Shiite cleric Moqtada al-Sadr, hold a position as they back the Iraqi army in the fight against Islamic State (IS) militants after re-taking control of an area in the Jurf al-Sakher district about 65 kilometres south of Baghdad on August 18, 2014. Since last week, the United States has conducted strikes on IS positions. AFP PHOTO /ALI AL-SAADI (Photo credit should read ALI AL-SAADI/AFP/Getty Images)

DOHUK, IRAQ - AUGUST 16: Yezidis who fled their home due to the assaults of army groups led by Islamic State (IS), formerly known as ISIL, take shelter in the buildings under construction in Zakho district, a few kilometers from the Iraqi-Turkish border, Dohuk on August 16, 2014. Islamic State fighters captured Iraq's Sinjar and Rabia in the Nineveh province last week after fierce clashes, forcing thousands of Iraqis including Turkmen, Arabs and Yezidis to flee. (Photo by Ahmet Izgi/Anadolu Agency/Getty Images)

DOHUK, IRAQ - AUGUST 16: Yezidis who fled their home due to the assaults of army groups led by Islamic State (IS), formerly known as ISIL, take shelter in the buildings under construction in Zakho district, a few kilometers from the Iraqi-Turkish border, Dohuk on August 16, 2014. Islamic State fighters captured Iraq's Sinjar and Rabia in the Nineveh province last week after fierce clashes, forcing thousands of Iraqis including Turkmen, Arabs and Yezidis to flee. (Photo by Ensar Ozdemir/Anadolu Agency/Getty Images)

DOHUK, IRAQ - AUGUST 16: Yezidis who fled their home due to the assaults of army groups led by Islamic State (IS), formerly known as ISIL, take shelter in the buildings under construction in Zakho district, a few kilometers from the Iraqi-Turkish border, Dohuk on August 16, 2014. Islamic State fighters captured Iraq's Sinjar and Rabia in the Nineveh province last week after fierce clashes, forcing thousands of Iraqis including Turkmen, Arabs and Yezidis to flee. (Photo by Ensar Ozdemir/Anadolu Agency/Getty Images)

MARDIN, TURKEY - AUGUST 17 : Hundreds of Ezidis who fled the conflict in Iraq arrive in a refugee camp in southeastern Turkey, Mardin on August 17, 2014. The tent city in the Midyat district of Turkey's southeastern province of Mardin received as many as 1,750 Ezidis, who will be accepted into the camp after the completion of health check-ups and registrations. (Photo by Huseyin Bagis/Anadolu Agency/Getty Images)

MARDIN, TURKEY - AUGUST 17 : Hundreds of Ezidis who fled the conflict in Iraq arrive in a refugee camp in southeastern Turkey, Mardin on August 17, 2014. The tent city in the Midyat district of Turkey's southeastern province of Mardin received as many as 1,750 Ezidis, who will be accepted into the camp after the completion of health check-ups and registrations. (Photo by Huseyin Bagis/Anadolu Agency/Getty Images)

Iraqi Kurdish Peshmerga fighters celebrate sitting on the back of a truck as they head to the Mosul dam on the Tigris river that they recaptured from Islamic State jihadists on August 17, 2014 near the northern Iraqi city of Mosul. Peshmerga forces backed by US air strikes retook the country's largest dam, about 50 kilometres (30 miles) north of Mosul, that jihadist militants seized the previous week, officials said. AFP PHOTO/AHMAD AL-RUBAYE (Photo credit should read AHMAD AL-RUBAYE/AFP/Getty Images)

Iraqi Kurdish Peshmerga fighters drive trucks as they head to the Mosul dam on the Tigris river that they recaptured from Islamic State jihadists on August 17, 2014 near the northern Iraqi city of Mosul. Peshmerga forces backed by US air strikes retook the country's largest dam, about 50 kilometres (30 miles) north of Mosul, that jihadist militants seized the previous week, officials said. AFP PHOTO/AHMAD AL-RUBAYE (Photo credit should read AHMAD AL-RUBAYE/AFP/Getty Images)

ARBIL, IRAQ - AUGUST 16: Refugees be be registered at the A'ashtar school, which receive aid from the German Diakonie on August, 16, 2014 in Arbil, Iraq. Iraqis including Turkmens, Shabaks, Kurds, Yezidis and Christians, fleeing from assaults of army groups led by Islamic State (IS) . (Photo by Thomas Imo/Photothek via Getty Images),

HANOVER, GERMANY - AUGUST 16: A woman cries over the loss of her daughter during a protest of ethnic Yazidis against the ongoing attacks against Yazidi in northern Iraq on August 16, 2014 in Hanover, Germany. Tens of thousands of Yazidi, who practice their own religion and are neither Christian nor Muslim, have fled targeted violence from ISIS Muslim Sunni fighters in the region of northern Iraq that borders Syria and Kurdish regions. An estimated 90,000 Yazidi live in Germany, more than in any other country in Europe. According to offical police sources, more than 10.000 demonstraters participated in the rally. (Photo by Alexander Koerner/Getty Images)

An Iraqi Yazidi girl, who fled her home with her family when Islamic State (IS) militants attacked the town of Sinjar, looks towards the camera inside a building under construction where many families found refuge on the outskirts of the Kurdish city of Dohuk, in Iraq's autonomous Kurdistan region, on August 16, 2014. While they have found safety in Iraq's autonomous Kurdish region, the members of the Yazidi religious minority have little else to celebrate, having lost loved ones, homes and their belongings. AFP PHOTO/AHMAD AL-RUBAYE (Photo credit should read AHMAD AL-RUBAYE/AFP/Getty Images)

An Iraqi Yazidi girl, who fled her home when Islamic State (IS) militants attacked the town of Sinjar, poses for a photo inside a building under construction where she found refuge on the outskirts of the Kurdish city of Dohuk, in Iraq's autonomous Kurdistan region, on August 16, 2014. According to the human rights non-governmental organisation Amnesty International some 200,000 people have escaped to safety in Iraq's Kurdish region. AFP PHOTO/AHMAD AL-RUBAYE (Photo credit should read AHMAD AL-RUBAYE/AFP/Getty Images)

An Iraqi Yazidi girl, who fled her home when Islamic State (IS) militants attacked the town of Sinjar, skips inside a building under construction where many families found refuge on the outskirts of the Kurdish city of Dohuk, in Iraq's autonomous Kurdistan region, on August 16, 2014. While they have found safety in Iraq's autonomous Kurdish region, the members of the Yazidi religious minority have little else to celebrate, having lost loved ones, homes and their belongings. AFP PHOTO/AHMAD AL-RUBAYE (Photo credit should read AHMAD AL-RUBAYE/AFP/Getty Images)

MOSUL, IRAQ - AUGUST 16: A burnt vehicle after attacks of army groups led by Islamic State (IS), formerly known as ISIL, on August 16, 2014 in Mosul, Iraq. Militants from the Islamic State, which then called itself the Islamic State of Iraq and the Levant, or ISIL, captured Mosul in June and then surged across northern Iraq, taking control of several predominantly Sunni cities. Peshmerga, the forces of the Kurdistan Regional Government, have been fighting fierce battles with the heavily armed Islamic State militants. (Photo by Ahmet Izgi/Anadolu Agency/Getty Images)

MOSUL, IRAQ - AUGUST 16: Kurdish peshmerga patrol of a bridge leading from Guver village to Mosul, destroyed by army groups led by Islamic State (IS), formerly known as ISIL, on August 16, 2014. Militants from the Islamic State, which then called itself the Islamic State of Iraq and the Levant, or ISIL, captured Mosul in June and then surged across northern Iraq, taking control of several predominantly Sunni cities. Peshmerga, the forces of the Kurdistan Regional Government, have been fighting fierce battles with the heavily armed Islamic State militants. (Photo by Ahmet Izgi/Anadolu Agency/Getty Images)

MOSUL, IRAQ - AUGUST 16: Kurdish peshmerga patrol of a bridge leading from Guver village to Mosul, destroyed by army groups led by Islamic State (IS), formerly known as ISIL, on August 16, 2014. Militants from the Islamic State, which then called itself the Islamic State of Iraq and the Levant, or ISIL, captured Mosul in June and then surged across northern Iraq, taking control of several predominantly Sunni cities. Peshmerga, the forces of the Kurdistan Regional Government, have been fighting fierce battles with the heavily armed Islamic State militants. (Photo by Ahmet Izgi/Anadolu Agency/Getty Images)

MOSUL, IRAQ - AUGUST 16: Iraqis flee their home as attacks of army groups led by Islamic State (IS), formerly known as ISIL, continue in Mosul city of Iraq on August 16, 2014. Militants from the Islamic State, which then called itself the Islamic State of Iraq and the Levant, or ISIL, captured Mosul in June and then surged across northern Iraq, taking control of several predominantly Sunni cities. Peshmerga, the forces of the Kurdistan Regional Government, have been fighting fierce battles with the heavily armed Islamic State militants. (Photo by Ahmet Izgi/Anadolu Agency/Getty Images)

SANLIURFA, TURKEY - AUGUST 16: Iraqi Yezidis escaping from attacks of army groups led by Islamic State (IS), take shelter in Viransehir district of Sanliurfa city, south-eastern Turkey on August 16, 2014. Refugees fleeing due to the assaults of Islamic State fighters, formerly known as ISIL, crossed the Habur border post on Turkish-Iraqi border. (Photo by Orhan Cicek/Anadolu Agency/Getty Images)

SANLIURFA, TURKEY - AUGUST 16: Yezidi woman Gevri Qasim talks in tears after Iraqis escaping from attacks of army groups led by Islamic State (IS), take shelter in Viransehir district of Sanliurfa city, south-eastern Turkey on August 16, 2014. Refugees fleeing due to the assaults of Islamic State fighters, formerly known as ISIL, crossed the Habur border post on Turkish-Iraqi border. (Photo by Orhan Cicek/Anadolu Agency/Getty Images)

ANKARA, TURKEY - 2014/08/15: Yezidi refugees want the United Nations High Commission for Refugees to grant Yezidi refugees asylum in Ankara, Turkey. Hundreds of Yezidi refugees fled to Turkey after violence during ISIS militants raids. (Photo by Basin Foto Ajansi/LightRocket via Getty Images)

ANKARA, TURKEY - 2014/08/15: Yezidi refugees want the United Nations High Commission for Refugees to grant Yezidi refugees asylum in Ankara, Turkey. Hundreds of Yezidi refugees fled to Turkey after violence during ISIS militants raids. (Photo by Basin Foto Ajansi/LightRocket via Getty Images)

ANKARA, TURKEY - 2014/08/15: Yezidi refugees want the United Nations High Commission for Refugees to grant Yezidi refugees asylum in Ankara, Turkey. Hundreds of Yezidi refugees fled to Turkey after violence during ISIS militants raids. (Photo by Basin Foto Ajansi/LightRocket via Getty Images)

ARBIL, IRAQ - AUGUST 15: Iraqis including Turkmens, Shabaks, Kurds, Yezidis and Christians, fleeing from assaults of army groups led by Islamic State (IS), take shelter at Bahirka refugee camp which was set up for Syrian refugees in Arbil, Iraq on August 15, 2014. (Photo by Ensar Ozdemir/Anadolu Agency/Getty Images)

ARBIL, IRAQ - AUGUST 15: Iraqis including Turkmens, Shabaks, Kurds, Yezidis and Christians, fleeing from assaults of army groups led by Islamic State (IS), take shelter at Bahirka refugee camp which was set up for Syrian refugees in Arbil, Iraq on August 15, 2014. (Photo by Ahmet Izgi/Anadolu Agency/Getty Images)

ARBIL, IRAQ - AUGUST 15: Iraqis including Turkmens, Shabaks, Kurds, Yezidis and Christians, fleeing from assaults of army groups led by Islamic State (IS), take shelter at Bahirka refugee camp which was set up for Syrian refugees in Arbil, Iraq on August 15, 2014. (Photo by Ahmet Izgi/Anadolu Agency/Getty Images)

ARBIL, IRAQ - AUGUST 15: Iraqis including Turkmens, Shabaks, Kurds, Yezidis and Christians, fleeing from assaults of army groups led by Islamic State (IS), take shelter at Bahirka refugee camp which was set up for Syrian refugees in Arbil, Iraq on August 15, 2014. (Photo by Ahmet Izgi/Anadolu Agency/Getty Images)

ARBIL, IRAQ - AUGUST 15: Iraqis including Turkmens, Shabaks, Kurds, Yezidis and Christians, fleeing from assaults of army groups led by Islamic State (IS), take shelter at Bahirka refugee camp which was set up for Syrian refugees in Arbil, Iraq on August 15, 2014. (Photo by Ahmet Izgi/Anadolu Agency/Getty Images)

ARBIL, IRAQ - AUGUST 15: Iraqis including Turkmens, Shabaks, Kurds, Yezidis and Christians, fleeing from assaults of army groups led by Islamic State (IS), take shelter at Bahirka refugee camp which was set up for Syrian refugees in Arbil, Iraq on August 15, 2014. (Photo by Ahmet Izgi/Anadolu Agency/Getty Images)

ARBIL, IRAQ - AUGUST 15: Iraqis including Turkmens, Shabaks, Kurds, Yezidis and Christians, fleeing from assaults of army groups led by Islamic State (IS), take shelter at Bahirka refugee camp which was set up for Syrian refugees in Arbil, Iraq on August 15, 2014. (Photo by Ahmet Izgi/Anadolu Agency/Getty Images)

ARBIL, IRAQ - AUGUST 15: Iraqis including Turkmens, Shabaks, Kurds, Yezidis and Christians, fleeing from assaults of army groups led by Islamic State (IS), take shelter at Bahirka refugee camp which was set up for Syrian refugees in Arbil, Iraq on August 15, 2014. (Photo by Ahmet Izgi/Anadolu Agency/Getty Images)

SIRNAK, TURKEY - AUGUST 15: Iraqi Yezidi baby lies on the bed in a tent in Sirnak southeast city of Turkey on August 15, 2014. Iraqi refugees fled Sinjar town of Mosul to Silopi district of Turkey's Sirnak city due to the attacks of Islamic State-led armed groups. Refugees fleeing attacks from Islamic State fighters, formerly known as ISIL, crossed the Habur border post between Turkish-Iraqi border and are settled houses and tents 3 kilometers away from Silopi district of Sirnak, Turkey. (Photo by Huseyin Bagis/Anadolu Agency/Getty Images)

Iraqi Yazidi refugees sit inside a tent at the Newroz camp in Hasaka province, north eastern Syria, on August 14, 2014, after fleeing advances by Islamic State jihadists in Iraq. Nearly 1,000 Iraqi families have taken refuge in the Syrian province of Hasaka despite the raging civil war there that has ravaged the country since March 2011 and killed more than 170,000 people. AFP PHOTO / AHMAD AL-RUBAYE (Photo credit should read AHMAD AL-RUBAYE/AFP/Getty Images)

Iraqi Yazidi refugees walk through the Newroz camp in Hasaka province, north eastern Syria, on August 14, 2014, after fleeing advances by Islamic State jihadists in Iraq. Nearly 1,000 Iraqi families have taken refuge in the Syrian province of Hasaka despite the raging civil war there that has ravaged the country since March 2011 and killed more than 170,000 people. AFP PHOTO / AHMAD AL-RUBAYE (Photo credit should read AHMAD AL-RUBAYE/AFP/Getty Images)

Young Iraqi Yazidi refugees fill bottles with water at the Newroz camp in Hasaka province, north eastern Syria, on August 14, 2014, after fleeing advances by Islamic State jihadists in Iraq. Nearly 1,000 Iraqi families have taken refuge in the Syrian province of Hasaka despite the raging civil war there that has ravaged the country since March 2011 and killed more than 170,000 people. AFP PHOTO / AHMAD AL-RUBAYE (Photo credit should read AHMAD AL-RUBAYE/AFP/Getty Images)

Iraqi Yazidi refugees gather to collect ice blocks at the Newroz camp in Hasaka province, north eastern Syria, on August 14, 2014, after fleeing advances by Islamic State jihadists in Iraq. Nearly 1,000 Iraqi families have taken refuge in the Syrian province of Hasaka despite the raging civil war there that has ravaged the country since March 2011 and killed more than 170,000 people. AFP PHOTO / AHMAD AL-RUBAYE (Photo credit should read AHMAD AL-RUBAYE/AFP/Getty Images)

An Iraqi Yazidi refugee woman stands outside her tent at Newroz camp in Hasaka province, north eastern Syria on August 14, 2014, after fleeing Islamic State militants in Iraq. The number of Iraqi civilians arriving in camps on both sides of the Syrian border after being besieged for days by jihadist fighters has declined sharply, a UN spokesman said. AFP PHOTO/AHMAD AL-RUBAYE (Photo credit should read AHMAD AL-RUBAYE/AFP/Getty Images)

DOHUK, IRAQ - AUGUST 14: Kurdish popular singer Sivan Perwer (C) gives a pep talk Peshmerga during his visit brother of President of the Kurdistan Regional Government Masud Barzani and Commander of 1st Peshmerga Defence Unit Sihat Barzani (not seen) to motivate Peshmerga in support of their fight with Islamic State (IS), formerly known as Islamic State of Iraq and the Levant (ISIL) in Dohuk, Iraq on August 14, 2014. (Photo by Ahmet Izgi/Anadolu Agency/Getty Images)

SIRNAK, TURKEY - AUGUST 14: Iraqi Yezidi child escaping from attacks of Islamic State, plays with toys in Sirnak southeast city of Turkey on August 14, 2014. Iraqi Yezidi people fled Sinjar town of Mosul to Silopi district of Turkey's Sirnak city due to the attacks of Islamic State-led armed groups. Refugees fleeing attacks from Islamic State fighters, formerly known as ISIL, crossed the Habur border post between Turkish-Iraqi border and are settled houses and tents 3 kilometers away from Silopi district of Sirnak, Turkey. (Photo by Huseyin Bagis/Anadolu Agency/Getty Images)

SIRNAK, TURKEY - AUGUST 14: Iraqi Yezidi children escaping from attacks of Islamic State, walk with their relative in Sirnak southeast city of Turkey on August 14, 2014. Iraqi Yezidi people fled Sinjar town of Mosul to Silopi district of Turkey's Sirnak city due to the attacks of Islamic State-led armed groups. Refugees fleeing attacks from Islamic State fighters, formerly known as ISIL, crossed the Habur border post between Turkish-Iraqi border and are settled houses and tents 3 kilometers away from Silopi district of Sirnak, Turkey. (Photo by Huseyin Bagis/Anadolu Agency/Getty Images)

SIRNAK, TURKEY - AUGUST 14: Iraqi Yezidi child escaping from attacks of Islamic State, plays with toys in Sirnak southeast city of Turkey on August 14, 2014. Iraqi Yezidi people fled Sinjar town of Mosul to Silopi district of Turkey's Sirnak city due to the attacks of Islamic State-led armed groups. Refugees fleeing attacks from Islamic State fighters, formerly known as ISIL, crossed the Habur border post between Turkish-Iraqi border and are settled houses and tents 3 kilometers away from Silopi district of Sirnak, Turkey. (Photo by Huseyin Bagis/Anadolu Agency/Getty Images)

SIRNAK, TURKEY - AUGUST 14: Iraqi Yezidi children escaping from attacks of Islamic State, play with toys in Sirnak southeast city of Turkey on August 14, 2014. Iraqi Yezidi people fled Sinjar town of Mosul to Silopi district of Turkey's Sirnak city due to the attacks of Islamic State-led armed groups. Refugees fleeing attacks from Islamic State fighters, formerly known as ISIL, crossed the Habur border post between Turkish-Iraqi border and are settled houses and tents 3 kilometers away from Silopi district of Sirnak, Turkey. (Photo by Huseyin Bagis/Anadolu Agency/Getty Images)

TO GO AFP STORY BY SERENE ASSIR - A displaced Iraqi Yazidi woman wipes her eyes at the Bajid Kandala camp near the Tigris River, in Kurdistan's western Dohuk province, where they took refuge after fleeing advances by Islamic State jihadists in Iraq on August 13, 2014. In the dusty, ill-equipped camp in northern Iraq, Yazidis say members of their families men -women and even babies- have been abducted by militants. AFP PHOTO/AHMAD AL-RUBAYE (Photo credit should read AHMAD AL-RUBAYE/AFP/Getty Images)

TO GO AFP STORY BY SERENE ASSIR - A Yazidi Iraqi woman sits holding her child at the Bajid Kandala camp near the Tigris River, in Kurdistan's western Dohuk province, where they took refuge after fleeing advances by Islamic State jihadists in Iraq on August 13, 2014. In the dusty, ill-equipped camp in northern Iraq, Yazidis say members of their families men -women and even babies- have been abducted by militants. AFP PHOTO/AHMAD AL-RUBAYE (Photo credit should read AHMAD AL-RUBAYE/AFP/Getty Images)

TO GO AFP STORY BY SERENE ASSIR - A Yazidi Iraqi woman sits with her children at the Bajid Kandala camp near the Tigris River, in Kurdistan's western Dohuk province, where they took refuge after fleeing advances by Islamic State jihadists in Iraq on August 13, 2014. In the dusty, ill-equipped camp in northern Iraq, Yazidis say members of their families men -women and even babies- have been abducted by militants. AFP PHOTO/AHMAD AL-RUBAYE (Photo credit should read AHMAD AL-RUBAYE/AFP/Getty Images)

A protester holds a placard during a demonstration against the killing of Yazidi's by Islamic State fighters in northern Iraq, outside Downing Street in central London on August 13, 2014. An international plan is under way to rescue civilians trapped by Islamic State (IS) fighters on a mountain in northern Iraq, British Prime Minister David Cameron said Wednesday. Cameron declined to give details of the operation but said Britain would play a role, just as it had worked alongside the United States in conducting humanitarian aid drops to thousands of Yazidis and other minorities who have fled to Mount Sinjar. AFP PHOTO / JUSTIN TALLIS (Photo credit should read JUSTIN TALLIS/AFP/Getty Images)

SIRNAK, TURKEY - AUGUST 13: Iraqi Yezidi kids escaping from attacks of Islamic State, cheer up with candies in Sirnak city of Turkey on August 13, 2014. Iraqi Yezidi people fled Sinjar town of Mosul to Silopi district of Turkey's Sirnak city due to the attacks of Islamic State-led armed groups. Refugees fleeing attacks from Islamic State fighters, formerly known as ISIL, crossed the Habur border post on Turkish-Iraqi border and are placed houses and tents 3 kilometers away from Silopi district of Sirnak, Turkey. (Photo by Huseyin Bagis/Anadolu Agency/Getty Images)

SIRNAK, TURKEY - AUGUST 13: An Iraqi Yezidi woman escaping from attacks of Islamic State, cuts his boy's hair with a shearer outside of a tent in Sirnak city of Turkey on August 13, 2014. Iraqi Yezidi people fled Sinjar town of Mosul to Silopi district of Turkey's Sirnak city due to the attacks of Islamic State-led armed groups. Refugees fleeing attacks from Islamic State fighters, formerly known as ISIL, crossed the Habur border post on Turkish-Iraqi border and are placed houses and tents 3 kilometers away from Silopi district of Sirnak, Turkey. (Photo by Huseyin Bagis/Anadolu Agency/Getty Images)

SIRNAK, TURKEY - AUGUST 13: An Iraqi Yezidi kid escaping from attacks of Islamic State, outside of a house in Sirnak city of Turkey on August 13, 2014. Iraqi Yezidi people fled Sinjar town of Mosul to Silopi district of Turkey's Sirnak city due to the attacks of Islamic State-led armed groups. Refugees fleeing attacks from Islamic State fighters, formerly known as ISIL, crossed the Habur border post on Turkish-Iraqi border and are placed houses and tents 3 kilometers away from Silopi district of Sirnak, Turkey. (Photo by Huseyin Bagis/Anadolu Agency/Getty Images)

SIRNAK, TURKEY - AUGUST 13: Iraqi Yezidi kids escaping from attacks of Islamic State, walk among the tents in Sirnak city of Turkey on August 13, 2014. Iraqi Yezidi people fled Sinjar town of Mosul to Silopi district of Turkey's Sirnak city due to the attacks of Islamic State-led armed groups. Refugees fleeing attacks from Islamic State fighters, formerly known as ISIL, crossed the Habur border post on Turkish-Iraqi border and are placed houses and tents 3 kilometers away from Silopi district of Sirnak, Turkey. (Photo by Huseyin Bagis/Anadolu Agency/Getty Images)

ERBIL, IRAQ - AUGUST 13: Kurdish popular singer Sivan Perwer motivate Kurdish peshmerga in support of their fight with Islamic State (IS), formerly known as Islamic State of Iraq and the Levant (ISIL) during his visit in the village of Hazir, Iraq on August 13, 2014. (Photo by Ensar Ozdemir/Anadolu Agency/Getty Images)

ERBIL, IRAQ - AUGUST 13: Kurdish popular singer Sivan Perwer motivate Kurdish peshmerga in support of their fight with Islamic State (IS), formerly known as Islamic State of Iraq and the Levant (ISIL) during his visit in the village of Hazir, Iraq on August 13, 2014. (Photo by Ensar Ozdemir/Anadolu Agency/Getty Images)

ERBIL, IRAQ - AUGUST 13: Kurdish popular singer Sivan Perwer motivate Kurdish peshmerga in support of their fight with Islamic State (IS), formerly known as Islamic State of Iraq and the Levant (ISIL) during his visit in the village of Hazir, Iraq on August 13, 2014. (Photo by Ensar Ozdemir/Anadolu Agency/Getty Images)

BRUSSELS, BELGIUM - AUGUST 13: Yezidis living in Belgium, take part in a demonstration at Schuman Square to protest the attacks of Islamic State (IS) in Iraq, on August 13, 2014 in Brussels, Belgium. (Photo by Dursun Aydemir/Anadolu Agency/Getty Images)

ANKAWA, ERBIL, KURDISTAN, IRAQ - 2014/08/12: A Kurdish toddler sits in the room which he and his family have been allocated at Bazar International Shopping Mall in Erbil City center. Bazar International Shopping Mall is an unfinished building that has been left to decay. Its Christian Manager, Mr Nazar Hana invites refugee families to take shelter in the upper floors and provided them with food. There were 1,000 people gathered there already and still counting. (Photo by Vianney Le Caer/Pacific Press/LightRocket via Getty Images)

ARBIL, IRAQ - AUGUST 12: Iraqis including Turkmen, Shabaks, Kurds, Yezidis and Christians, fleeing from assaults of army groups led by Islamic State (IS), take shelter at Bahirka Camp in Arbil, Iraq on August 12, 2014. Iraqis, taking shelter, try to survive in poor conditions at camps. (Photo by Ensar Ozdemir/Anadolu Agency/Getty Images)

ARBIL, IRAQ - AUGUST 12: Iraqis including Turkmen, Shabaks, Kurds, Yezidis and Christians, fleeing from assaults of army groups led by Islamic State (IS), take shelter at Bahirka Camp in Arbil, Iraq on August 12, 2014. Iraqis, taking shelter, try to survive in poor conditions at camps. (Photo by Ensar Ozdemir/Anadolu Agency/Getty Images)

ARBIL, IRAQ - AUGUST 12: Iraqis including Turkmen, Shabaks, Kurds, Yezidis and Christians, fleeing from assaults of army groups led by Islamic State (IS), take shelter at Bahirka Camp in Arbil, Iraq on August 12, 2014. Iraqis, taking shelter, try to survive in poor conditions at camps. (Photo by Ensar Ozdemir/Anadolu Agency/Getty Images)

ARBIL, IRAQ - AUGUST 12: Iraqis including Turkmen, Shabaks, Kurds, Yezidis and Christians, fleeing from assaults of army groups led by Islamic State (IS), take shelter at Bahirka Camp in Arbil, Iraq on August 12, 2014. Iraqis, taking shelter, try to survive in poor conditions at camps. (Photo by Ensar Ozdemir/Anadolu Agency/Getty Images)

ARBIL, IRAQ - AUGUST 12: Iraqis including Turkmen, Shabaks, Kurds, Yezidis and Christians, fleeing from assaults of army groups led by Islamic State (IS), take shelter at Bahirka Camp in Arbil, Iraq on August 12, 2014. Iraqis, taking shelter, try to survive in poor conditions at camps. (Photo by Ensar Ozdemir/Anadolu Agency/Getty Images)

ARBIL, IRAQ - AUGUST 12: Iraqis including Turkmen, Shabaks, Kurds, Yezidis and Christians, fleeing from assaults of army groups led by Islamic State (IS), take shelter at Bahirka Camp in Arbil, Iraq on August 12, 2014. Iraqis, taking shelter, try to survive in poor conditions at camps. (Photo by Ensar Ozdemir/Anadolu Agency/Getty Images)

ARBIL, IRAQ - AUGUST 12: Iraqis including Turkmen, Shabaks, Kurds, Yezidis and Christians, fleeing from assaults of army groups led by Islamic State (IS), take shelter at Bahirka Camp in Arbil, Iraq on August 12, 2014. Iraqis, taking shelter, try to survive in poor conditions at camps. (Photo by Ensar Ozdemir/Anadolu Agency/Getty Images)

ARBIL, IRAQ - AUGUST 12: Iraqis including Turkmen, Shabaks, Kurds, Yezidis and Christians, fleeing from assaults of army groups led by Islamic State (IS), take shelter at Bahirka Camp in Arbil, Iraq on August 12, 2014. Iraqis, taking shelter, try to survive in poor conditions at camps. (Photo by Ensar Ozdemir/Anadolu Agency/Getty Images)

ARBIL, IRAQ - AUGUST 12: Iraqis including Turkmen, Shabaks, Kurds, Yezidis and Christians, fleeing from assaults of army groups led by Islamic State (IS), take shelter at Bahirka Camp in Arbil, Iraq on August 12, 2014. Iraqis, taking shelter, try to survive in poor conditions at camps. (Photo by Ensar Ozdemir/Anadolu Agency/Getty Images)

SIRNAK, TURKEY - AUGUST 12: Iraqi Yezidi refugees escaping from attacks of Islamic State, try to hold on life in Sirnak city of Turkey on August 12, 2014. Iraqi Yezidi people fled Sinjar town of Mosul to Silopi district of Turkey's Sirnak city due to the attacks of Islamic State-led armed groups. Refugees fleeing attacks from Islamic State fighters, formerly known as ISIL, crossed the Habur border post on Turkish-Iraqi border and are placed houses and tents 3 kilometers away from Silopi district of Sirnak, Turkey. (Photo by Huseyin Bagis/Anadolu Agency/Getty Images)

SIRNAK, TURKEY - AUGUST 12: Iraqi Yezidi refugees escaping from attacks of Islamic State, wait in line to receive food in Sirnak city of Turkey on August 12, 2014. Iraqi Yezidi people fled Sinjar town of Mosul to Silopi district of Turkey's Sirnak city due to the attacks of Islamic State-led armed groups. Refugees fleeing attacks from Islamic State fighters, formerly known as ISIL, crossed the Habur border post on Turkish-Iraqi border and are placed houses and tents 3 kilometers away from Silopi district of Sirnak, Turkey. (Photo by Huseyin Bagis/Anadolu Agency/Getty Images)

SIRNAK, TURKEY - AUGUST 12: Iraqi Yezidi refugees escaping from attacks of Islamic State, try to hold on life in Sirnak city of Turkey on August 12, 2014. Iraqi Yezidi people fled Sinjar town of Mosul to Silopi district of Turkey's Sirnak city due to the attacks of Islamic State-led armed groups. Refugees fleeing attacks from Islamic State fighters, formerly known as ISIL, crossed the Habur border post on Turkish-Iraqi border and are placed houses and tents 3 kilometers away from Silopi district of Sirnak, Turkey. (Photo by Huseyin Bagis/Anadolu Agency/Getty Images)

ANKAWA, ERBIL, KURDISTAN, IRAQ - 2014/08/11: Volunteers distribute ice blocks for the refugees in Mar Tshmony church. 500 Christian families have been sheltered at Mar Tshmony church, after an unprecedented ISIS advance into Kurdish controlled territory, mainly Qaraqosh for the second time. These refugees are begging for passports to get out Iraq and even called on Western governments to offer them asylum as their culture faces the danger of extinction. (Photo by Vianney La Caer/Pacific Press/LightRocket via Getty Images)

ANKAWA, ERBIL, KURDISTAN, IRAQ - 2014/08/11: A woman kisses her son outside the Mar Tshmony church. 500 Christian families have been sheltered at Mar Tshmony church, after an unprecedented ISIS advance into Kurdish controlled territory, mainly Qaraqosh for the second time. These refugees are begging for passports to get out Iraq and even called on Western governments to offer them asylum as their culture faces the danger of extinction. (Photo by Vianney La Caer/Pacific Press/LightRocket via Getty Images)

MOSUL, IRAQ - AUGUST 11: A man is in a destroyed headquarters of Islamic State (IS), formerly known as Islamic State of Iraq and the Levant (ISIL), militants following Peshmerga forces' seizure of Makhmur by repelling Islamic State (IS) militants in Makhmur town of Mosul, Iraq on August 11, 2014. (Photo by Ahmet Izgi/Anadolu Agency/Getty Images)

MOSUL, IRAQ - AUGUST 11: A destroyed house is seen following Peshmerga forces' seizure of Makhmur by repelling Islamic State (IS), formerly known as Islamic State of Iraq and the Levant (ISIL), militants in Makhmur town of Mosul, Iraq on August 11, 2014. (Photo by Ahmet Izgi/Anadolu Agency/Getty Images)

HASEKI, SYRIA - AUGUST 10: Thousands of Yezidis trapped in the Sinjar mountains without food and water for days, due to the Islamic State (IS) violence, formerly known as Islamic State of Iraq and the Levant (ISIL), arrive in Haseki city of Syria on August 10, 2014. (Photo by Feriq Ferec/Anadolu Agency/Getty Images)

HASEKI, SYRIA - AUGUST 10: Thousands of Yezidis trapped in the Sinjar mountains without food and water for days, due to the Islamic State (IS) violence, formerly known as Islamic State of Iraq and the Levant (ISIL), arrive in Haseki city of Syria on August 10, 2014. (Photo by Feriq Ferec/Anadolu Agency/Getty Images)

MOSUL, IRAQ - AUGUST 11: People, packing their stuff, flee from Makhmur to Arbil following Peshmerga forces' seizure of Makhmur by repelling Islamic State (IS), formerly known as Islamic State of Iraq and the Levant (ISIL), militants in Makhmur town of Mosul, Iraq on August 11, 2014. (Photo by Ahmet Izgi/Anadolu Agency/Getty Images)

MOSUL, IRAQ - AUGUST 11: A Peshmerga is seen following Peshmerga forces' seizure of Makhmur by repelling Islamic State (IS), formerly known as Islamic State of Iraq and the Levant (ISIL), militants in Makhmur town of Mosul, Iraq on August 11, 2014. (Photo by Ahmet Izgi/Anadolu Agency/Getty Images)

MOSUL, IRAQ - AUGUST 11: A Peshmerga is seen following Peshmerga forces' seizure of Makhmur by repelling Islamic State (IS), formerly known as Islamic State of Iraq and the Levant (ISIL), militants in Makhmur town of Mosul, Iraq on August 11, 2014. (Photo by Ahmet Izgi/Anadolu Agency/Getty Images)

MOSUL, IRAQ - AUGUST 11: A destroyed house is seen following Peshmerga forces' seizure of Makhmur by repelling Islamic State (IS), formerly known as Islamic State of Iraq and the Levant (ISIL), militants in Makhmur town of Mosul, Iraq on August 11, 2014. (Photo by Ahmet Izgi/Anadolu Agency/Getty Images)

MOSUL, IRAQ - AUGUST 11: An armed man is seen following Peshmerga forces' seizure of Makhmur by repelling Islamic State (IS), formerly known as Islamic State of Iraq and the Levant (ISIL), militants in Makhmur town of Mosul, Iraq on August 11, 2014. (Photo by Ahmet Izgi/Anadolu Agency/Getty Images)

SIRNAK, TURKEY - AUGUST 13: An Iraqi Yezidi kid escaping from attacks of Islamic State, walks with a bottled gas among the tents in Sirnak city of Turkey on August 13, 2014. Iraqi Yezidi people fled Sinjar town of Mosul to Silopi district of Turkey's Sirnak city due to the attacks of Islamic State-led armed groups. Refugees fleeing attacks from Islamic State fighters, formerly known as ISIL, crossed the Habur border post on Turkish-Iraqi border and are placed houses and tents 3 kilometers away from Silopi district of Sirnak, Turkey. (Photo by Huseyin Bagis/Anadolu Agency/Getty Images)

MOSUL, IRAQ - AUGUST 11: A burned vehicle is seen following Peshmerga forces' seizure of Makhmur by repelling Islamic State (IS), formerly known as Islamic State of Iraq and the Levant (ISIL), militants in Makhmur town of Mosul, Iraq on August 11, 2014. (Photo by Ahmet Izgi/Anadolu Agency/Getty Images)