在沖 ざいちゅう米軍 べいぐんなら
za ichūbē gunnara

Noun
Da Copula

The "-nara" conditional form ("if/when…") of 在沖米軍

1. If/when U.S. forces are stationed in Okinawa.; If Okinawa were occupied by U.S. forces.

Nara Conditional