陸上 りくじょう作戦 さくせん本部 ほんぶじゃありませんでした
rikujōsakusenhombujārimasendeshita

Noun
Desu Copula

The polite, past negative form of 陸上作戦本部

1. Was not the land operations headquarters.; Was not a land operations headquarters.

Past/Perfective
Negative
Polite
Terminal Form