Why did the United States enter World War II?
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Correct answer to question 106: (Bombing of) Pearl Harbor
Acceptable answers:
- (Bombing of) Pearl Harbor
- Japanese attacked Pearl Harbor
- To support the Allied Powers (England, France, and Russia)
- To oppose the Axis Powers (Germany, Italy, and Japan)
Why
The United States entered World War II after Japan attacked Pearl Harbor on December 7, 1941, fighting the Axis Powers alongside its allies.
Updated: November 2026