Why did the United States enter the Korean War?

To stop the spread of communism.

  1. Japan attacked Pearl Harbor
  2. To force Iraq out of Kuwait
  3. To stop the spread of communism ✔

Why: The U.S. entered the Korean War to stop the spread of communism, the same reason it gave for Vietnam. Pearl Harbor led to World War II, and Kuwait was the Persian Gulf War.

Huh, didn't know that: The Korean War stopped with an armistice in 1953, and no peace treaty was ever signed.

The dad joke
What's the coldest country in the world? Chile.
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Sources

  1. USCIS M-1778 (09/25), 128 Civics Questions and Answers (2025 version) https://www.uscis.gov/sites/default/files/document/questions-and-answers/2025-Civics-Test-128-Questions-and-Answers.pdf

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