奇襲 きしゅう攻撃 こうげきではありませんでした
kishūkōgekidewārimasendeshita

Noun
Desu Copula

The polite, past negative form of 奇襲攻撃

1. Was not a surprise attack.; Was not an ambush.

Past/Perfective
Negative
Polite
Formal Register