What happpend when American soldiers arrived in Europe in 1917?

When American soldiers arrived in Europe in 1917 during World War I, they significantly bolstered the Allied forces, which were facing exhaustion from prolonged trench warfare. Their arrival provided fresh troops and resources, helping to rejuvenate morale among Allied soldiers. The American Expeditionary Forces, led by General John J. Pershing, played a crucial role in key battles, such as the Battle of Cantigny and the Meuse-Argonne Offensive, contributing to the eventual defeat of the Central Powers in 1918.