琉球 りゅうきゅう列島 れっとう米国 べいこく ぐん政府 せいふであれば
ryūkyū rettō beikoku gun seifudeareba

Noun
Da Copula

The "-eba" conditional form ("if/when…") of 琉球列島米国軍政府

1. If the Ryukyu Islands U.S. Military Government; Were the Ryukyu Islands U.S. Military Government

Ba Conditional