The JGSDF Central Band website shows singer Tsugumi Mai in her performance uniform. She wears it when carrying out official duties.
The Takaichi administration is insisting that her in-uniform performance at their political party's convention was off-duty & not political.
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Jeffrey J. Hall 
@mrjeffu
A uniformed member of the JSDF sang the national anthem at the Liberal Democratic Party's convention.
JSDF personnel are banned from political activities.
The official govt response: singing the anthem is not political & she appeared as a private person.
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