Question 100 of 128
2025 civics test
American History
Name one war fought by the United States in the 1900s.
Accepted answers
Accepted answers
- World War I
- World War II
- Korean War
- Vietnam War
- (Persian) Gulf War
Explanation
1900s wars include World War I, World War II, the Korean War, and the Vietnam War.
The explanation is our own study note, not official wording.
Source: USCIS, 2025 version (USCIS M-1778, 09/25)Verified Jul 23, 2026Official PDF
Question and answer wording is reproduced from the official USCIS study materials. US Citizenship Prep is an independent educational practice tool. It is not affiliated with, endorsed by, or operated by U.S. Citizenship and Immigration Services or any other government agency. Practice results do not guarantee an outcome in an official naturalization interview.