What were the roles of the United States during World War 1 mean or are?

During World War I, the United States played a crucial role by providing military support and resources to the Allied Powers, which included countries like Britain and France. American troops, known as the American Expeditionary Forces, helped to bolster the weary Allied forces and tipped the balance in favor of the Allies. Additionally, the U.S. contributed economically by supplying arms, food, and financial loans, which significantly aided the war effort. Ultimately, America's involvement helped to expedite the end of the conflict and shaped the post-war order.