Why did the United States enter World War I?
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Correct answer to question 101: Because Germany attacked U.S. (civilian) ships
Acceptable answers:
- Because Germany attacked U.S. (civilian) ships
- To support the Allied Powers (England, France, Italy, and Russia)
- To oppose the Central Powers (Germany, Austria-Hungary, the Ottoman Empire, and Bulgaria)
Why
The United States entered World War I in 1917 after German submarines attacked American ships, joining Britain, France, Italy and Russia against the Central Powers.
Updated: November 2026
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