<P> The American Expeditionary Forces ( AEF ) was the expeditionary force of the United States Army during World War I. It was established on July 5 , 1917 , in France under the command of Gen. John J. Pershing . During the United States campaigns in World War I it fought , alongside French and British troops , against the German Empire . Some of the troops fought alongside Italian forces in that same year , against the Austro - Hungarian Army . It helped the French Army on the Western Front during the Aisne Offensive ( at Château - Thierry and Belleau Wood ) in June 1918 , and fought its major actions in the Saint - Mihiel and Meuse - Argonne Offensives in late 1918 . </P>
<P> The American Expeditionary Forces ( AEF ) was the expeditionary force of the United States Army during World War I. It was established on July 5 , 1917 , in France under the command of Gen. John J. Pershing . During the United States campaigns in World War I it fought , alongside French and British troops , against the German Empire . Some of the troops fought alongside Italian forces in that same year , against the Austro - Hungarian Army . It helped the French Army on the Western Front during the Aisne Offensive ( at Château - Thierry and Belleau Wood ) in June 1918 , and fought its major actions in the Saint - Mihiel and Meuse - Argonne Offensives in late 1918 . </P>
when did the first us troops arrive in france ww1
when did the first us troops arrive in france ww1
July 5 , 1917
July 5 , 1917