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Civics Test Question 110: Why did the United States enter the Korean War?

A question from the 2025 civics test, with the answers USCIS publishes and our explanation.

Translation
110
Why did the United States enter the Korean War?美国为什么参加朝鲜战争?¿Por qué entró Estados Unidos en la Guerra de Corea?

Official answers

Any one of these is correct.

  • To stop the spread of communism为了阻止共产主义的扩散Para detener la expansión del comunismo

Explanation

The United States entered the Korean War (1950–1953) to stop the spread of communism.

Memory tip

💡 Korea and Vietnam have the same answer: to stop the spread of communism.

More questions in American History · Recent History

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