戦闘 せんとう前哨 ぜんしょうではありません
sen tōzen shōdewārimasen

Noun
Desu Copula
Negation Auxiliary

The polite negative form of 戦闘前哨

1. It is not a forward operating base.; It is not a pre-battle outpost.

Negative
Polite
Formal Register