三さん大だい国こく

noun

the Big Three (countries)

Refers to the three major powers in a given context, often in historical or geopolitical discussions. The specific countries depend on the era or topic.

• 第だい二に次じ世せ界かい大たい戦せん後ごの三さん大だい国こくはアメリカ、ソ連れん、イギリスだった。

  After World War II, the Big Three were the United States, the Soviet Union, and the United Kingdom.