防御 ぼうぎょ部隊 ぶたいじゃありませんでした
bōgyobutaijārimasendeshita

Noun
Desu Copula

The polite, past negative form of 防御部隊

1. Was not a defense force.; Was not part of the defense force.

Past/Perfective
Negative
Polite
Terminal Form