Volodymyr Zelensky, the president of Ukraine, has made many trips to the United States to maintain support for his country’s resistance to Russia’s invasion. Usually, he has gone home with the promise of new weapons, help for his flagging wartime economy and some flattering words about how Ukrainians under his leadership are fighting heroically for the cause of the free West.
This week’s mission is, however, not merely a polite leave-taking, a chance for Mr Zelensky to say farewell to a departing US president. It is cliff-edge diplomacy, representing Mr Zelensky’s last hope that Joe Biden will provide permission for Kyiv to use western missiles, all totally or partially dependent on American intelligence for targeting, to strike deep into Russia and force it into a
