たいそ干渉 かんしょう戦争 せんそうではありませんでした
taisokanshōsensōdewa arimasendeshita

Noun
Desu Copula

The polite, past negative form of 対ソ干渉戦争

1. Was not the intervention in Russia.; Was not the anti-Soviet intervention war.

Past/Perfective
Negative
Polite
Formal Register