米国 べいこく 安全 あんぜん保障 ほしょう しょうじゃありませんでした
beikokudo anzenhoshō shōja arimasendeshita

Noun
Desu Copula

The polite, past negative form of 米国土安全保障省

1. Was not the Department of Homeland Security.; Wasn't the Department of Homeland Security.

Past/Perfective
Negative
Polite
Terminal Form