軍ぐん備び競きょう争そう

noun

arms race

Refers to a competitive buildup of military weapons and forces between nations.

• 冷れい戦せん時じ代だい、米べいソ間かんで軍ぐん備び競きょう争そうが激げき化かした。

  During the Cold War, the arms race between the US and the Soviet Union intensified.