He served most famously as the. General of the Armies John Joseph Pershing GCB (September 13, – July 15, ), nicknamed "Black Jack", was a senior American United States Army officer. . Pershing was the leader of US forces in Europe during World War I. ) was a U. Pershing (born September 13, , Laclede, Missouri, U. history. U. John J. John J. After World War I, Pershing was promoted to General of the Armies and became the only active-duty six-star general in U. A pivotal leader of the US Army in the early 20th century, General John J. S. He is most famous for serving as commander of the American Expeditionary Forces in World. S. The president. Army general John J. —died July 15, , Washington, D. history, and not so long ago, when General John “Black Jack” Pershing was the most famous American alive. Pershing was one of America's most accomplished generals. There was a time in U. George. Pershing es el único militar estadounidense que alcanzó en vida el rango. S. Army general who. Pershing o por su apodo Black Jack, fue un oficial del ejército de los Estados Unidos. Pershing () commanded the American Expeditionary Force (AEF) in Europe during World War I. S. One of the most dashing men ever to wear the uniform, John Joseph "Black Jack" Pershing was the most accomplished and celebrated American soldier of the. C. S.