The arrival of the American expeditionary forces in Europe affect World War I when American forces assisted in defeating Germany earlier than anticipated.
The first significant offensive in Europe by the American Expeditionary Forces , led by General John J. Pershing, was launched on September 12, 1918. For the Allies, their victorious campaign marked a significant turning point in the war. In the end, American forces helped defeat Germany earlier than anticipated.
The United States' involvement in the conflict changed the course of the conflict because it made it feasible to eventually defeat Germany. In 1916, it was predicted that if the United States entered a war with Germany, American supplies and sizable loans would support the Allies' military campaign.
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