What did jhon j. pershing do in ww1?

John J. Pershing served as the commander of the American Expeditionary Forces (AEF) during World War I. He played a crucial role in leading U.S. troops in key battles, including the Battle of Cantigny and the Meuse-Argonne Offensive. Pershing advocated for an independent American army rather than integrating U.S. forces into existing Allied commands, which helped establish the United States as a significant military power. His leadership and strategies contributed to the successful conclusion of the war in 1918.