だい規模 きぼ戦争 せんそうじゃありませんでした
daiki bosensōjārimasendeshita

Noun
Desu Copula

The polite, past negative form of 大規模戦争

1. It was not a large-scale war.; It wasn't a large-scale war.

Past/Perfective
Negative
Polite
Terminal Form