こく かん相互 そうご主義 しゅぎじゃなかったです
ni kokukansō goshugijanakattadesu

Noun
Desu Copula

The polite, past negative form of 二国間相互主義

1. It wasn't bilateral mutualism.; It wasn't reciprocal bilateralism.

Past/Perfective
Negative
Polite
Casual Register