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2025 civics test · Question 110 of 128 · Recent American History and Other Important Historical Information

Why did the United States enter the Korean War?

In Chinese 美国为什么参加朝鲜战争?

Official answer

  • To stop the spread of communism为了阻止共产主义的扩散

Why this is the answer

In 1950, communist North Korea invaded South Korea. The United States, working with the United Nations, sent troops to defend South Korea and stop the spread of communism, which was a main Cold War goal. The fighting ended with an armistice in 1953, and Korea remains divided. The official answer is: to stop the spread of communism.

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Source: USCIS 128 Civics Test Questions (PDF)

Unofficial study aid. Questions and answers are copied from USCIS publications; Chinese translations are ours and are for understanding only. Your interview is in English (unless you qualify for an exemption). Always check uscis.gov for the latest information. Not legal advice.