Civics Test Question 100: Name one war fought by the United States in the 1900s.

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

Translation

100

Name one war fought by the United States in the 1900s.说出一场美国在 1900 年代打过的战争。Mencione una guerra en la que peleó Estados Unidos en los años 1900.

Official answers

Any one of these is correct.

World War I第一次世界大战La Primera Guerra Mundial
World War II第二次世界大战La Segunda Guerra Mundial
Korean War朝鲜战争La Guerra de Corea
Vietnam War越南战争La Guerra de Vietnam
(Persian) Gulf War（波斯湾）海湾战争La Guerra del Golfo (Pérsico)

Explanation

Wars the United States fought in the 1900s include World War I, World War II, the Korean War, the Vietnam War and the Persian Gulf War. Naming one is enough.

Memory tip

💡 Easiest: World War II.

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