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Which of these wars did the United States fight in the 1900s?

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  1. The War of 1812
  2. The Mexican-American War
  3. The Korean War

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References

  1. USCIS M-1778, 128 Civics Questions and Answers, question 100 www.uscis.gov/sites/default/files/document/questions-and-answers/2025-Civics-Test-128-Questions-and-Answers.pdf Checked 2026-10-09.

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