攻撃 こうげき開始 かいし せんじゃありませんでした
kō gekikaishisenjārimasendeshita

Noun
Desu Copula

The polite, past negative form of 攻撃開始線

1. Was not the attack start line.; Was not the line of attack initiation.

Past/Perfective
Negative
Polite
Terminal Form
Military