110. Why did the United States enter the Korean War?
American History · Recent American History and Other Important Historical Information
Accepted answer(s)
- To stop the spread of communism
This question comes from the American History section of the 2025 Civics Test. USCIS includes it to confirm applicants know the founding events and figures behind U.S. citizenship, not just civics theory. The accepted answer, "To stop the spread of communism", is worth memorizing exactly since dates and names are graded strictly in the interview.
This is question 110 of the 2025 Civics Test. See it on uscis.gov.
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