かく軍拡 ぐんかく競争 きょうそうじゃなかったです
kaku gunkakukyōsōjanakattadesu

Noun
Desu Copula

The polite, past negative form of 核軍拡競争

1. It wasn't a nuclear arms race.

Past/Perfective
Negative
Polite
Casual Register