What military action did American troops see in World War I?

American troops saw military action on the Western Front of World War I after they entered the war in 1917. Key battles that US troops were involved in include the Second Battle of the Somme, the Second Battle of the Marne, and the Battle of Belleau Wood.

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The United States entered World War I in 1917. But it was not prepared for war. Its army had only about 130,000 soldiers. Because of the country's unpreparedness, it was not able to send enough troops to France to make a difference until 1918. There was a strong possibility that the war would end with German victory before American troops could arrive.

In 1917, Russia left the war, so Germany was able to transfer its troops to the Western Front. In the following year, Germany attacked the British, French, and American forces. The British and the French were weakened from years of war, so American troops played a key role in stemming the German advance in 1918.

General John Pershing led the American troops; they were known as the American Expeditionary Forces (AEF). They took part in the Second Battle of the Somme, the Second Battle of the Marne, and other conflicts on the Western Front. Pershing's troops played important roles in stopping the Germans in the Battle of Belleau Wood, and Germany ultimately had to surrender.

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