<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 General John J. Pershing . During the United States campaigns in World War I it fought alongside the French Army , British Army , Canadian Army and Australian Army on the Western Front , against the German Empire . A minority of the AEF troops also fought alongside the Italian Army in that same year , against the Austro - Hungarian Army . The AEF helped the French Army on the Western Front during the Aisne Offensive ( at the Battle of Château - Thierry ( 1918 ) and Battle of Belleau Wood ) in the summer of 1918 , and the AEF fought its major actions in the Battle of Saint - Mihiel and the Meuse - Argonne Offensive in the latter part of 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 General John J. Pershing . During the United States campaigns in World War I it fought alongside the French Army , British Army , Canadian Army and Australian Army on the Western Front , against the German Empire . A minority of the AEF troops also fought alongside the Italian Army in that same year , against the Austro - Hungarian Army . The AEF helped the French Army on the Western Front during the Aisne Offensive ( at the Battle of Château - Thierry ( 1918 ) and Battle of Belleau Wood ) in the summer of 1918 , and the AEF fought its major actions in the Battle of Saint - Mihiel and the Meuse - Argonne Offensive in the latter part of 1918 . </P>
when did the first us troops enter ww1
when did the first us troops enter ww1
on the Western Front during the Aisne Offensive ( at the Battle of Château - Thierry ( 1918 )
on the Western Front during the Aisne Offensive ( at the Battle of Château - Thierry ( 1918 )