expression, godan verb (-su)
rise in revolt; raise the standard of revolt
Idiomatic expression meaning to openly rebel against authority, often used in political or historical contexts. Literally 'to unfurl the flag of rebellion'.
市民たちは圧政に対して反旗を翻した。
The citizens rose in revolt against the oppressive government.
彼は党の方針
He rebelled against the party line and proposed his own policies.