在日 ざいにち米軍 べいぐんではありませんでした
zainichibē gundewārimasendeshita

Noun
Desu Copula

The polite, past negative form of 在日米軍

1. Was not a U.S. Forces member stationed in Japan.; Was not a U.S. military personnel residing in Japan.

Past/Perfective
Negative
Polite
Formal Register