Answer :
Final answer:
The United States entered World War I in 1917 due to German submarine warfare. American troops fought alongside the Allies, making significant contributions to key battles. The U.S. entry and subsequent involvement helped lead to victory for the Allies.
Explanation:
United States' Entry into World War I:
The United States entered World War I in 1917 after remaining neutral for the first three years of the conflict. The primary catalyst for their entry was the German policy of unrestricted submarine warfare and the sinking of American ships.
WWI Experience:
During the war, the US mobilized its military and deployed troops to Europe. American soldiers fought alongside their Allied counterparts, primarily on the Western Front. The American Expeditionary Forces made significant contributions to key battles, such as the Second Battle of the Marne and the Meuse-Argonne Offensive.
U.S. Entry Leading to Allied Victory:
The United States' entry into the war provided a boost to the Allies by bolstering their numbers and resources. The arrival of fresh American troops helped turn the tide in favor of the Allies, leading to decisive victories in key battles. Moreover, American involvement significantly weakened the Central Powers, ultimately contributing to the Allied victory in World War I.
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