不可侵 ふかしん条約 じょうやくじゃありませんでした
fukashin jōyakujārimasendeshita

Noun
Desu Copula

The polite, past negative form of 不可侵条約

1. Was not an inviolable treaty.; Was not an unviolable treaty.

Past/Perfective
Negative
Polite
Terminal Form