28. John J. Pershing (1860-1948)
Pershing began as a Professor of Military Science and Tactics at the University of Nebraska in September 1891 for four years. As a General in 1917, he was appointed as the Commander-in-Chief of the American Expeditionary Force (AEF); suitably, due to the US declaration of war against Germany being underway.
Albeit, at the time of his appointment at the AEF, there wasn’t any expeditionary force, only a regular army with a maximum of 25,000 men. However, through Pershing’s efforts, he managed to get the army recruits past the required number of 500,000 men all the way to 3 million men in a year!
In 1921 he was appointed as the U.S. Army Chief of Staff, and at his retirement in 1924 he was awarded the title ‘General of the Armies’.