Question

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What was an impact of the United States entry into World War I?

The arrival of fresh troops to the Allied side forced Germany to agree to a cease-fire within a year.

Tensions developed between American and French troops over who would occupy the best trenches.

The Ottoman Empire immediately surrendered to the Allied powers, realizing that its fight was futile.

Britain shifted most of its troops to the eastern front because they were no longer needed in France.

Answer 1

In short, American entry into World War I helped to bring the war on the Western Front in Europe to an end. The United States declared war in April of 1917, but was unable to commit significant forces (in the form of the American Expeditionary Force) until 1918.

Answer: Britain shifted most of its troops to the Eastern front because they were no longer needed in France