USCIS Civics · Question 101 of 128
Why did the United States enter World War I?
Because Germany attacked U.S. (civilian) ships
Also accepted: To support the Allied Powers (England, France, Italy, and Russia) · To oppose the Central Powers (Germany, Austria-Hungary, the Ottoman Empire, and Bulgaria)
In plain English
The United States entered World War I because Germany attacked U.S. civilian ships. German submarines sank American ships, so in 1917 the United States joined the war. America fought to support the Allied Powers — England, France, Italy, and Russia — and to oppose the Central Powers. The United States entered World War I because Germany attacked U.S. ships.