Patton's mass exercise showcased the capabilities of armored warfare

In December 1940, Brigadier General George S. Patton organized a large scale training exercise with the 2nd Armored Division at Fort Benning, Georgia, to demonstrate the operational potential of concentrated armored forces. At the time, the U.S. Army was expanding its mechanized capabilities and evaluating how tanks could be used in mass rather than distributed in small groups to support infantry. Patton, serving as a senior armored leader, emphasized speed, shock action, and coordinated movement of tanks supported by artillery, reconnaissance, and motorized infantry. The Fort Benning exercise involved rapid maneuver across training areas designed to simulate breakthrough operations against prepared defenses. Units practiced massed armored thrusts followed by exploitation into rear areas, with logistics elements attempting to sustain the advance. Observers evaluated communications, command control, and the ability of armored formations to maintain momentum. The demonstration reflected emerging doctrine influenced by European armored warfare developments and internal U.S. Army experimentation. The December 1940 training helped reinforce arguments for independent armored divisions capable of deep penetration rather than limited infantry support roles. Patton continued refining these concepts while serving with the 2nd Armored Division and later during large scale maneuvers in 1941. His advocacy for concentrated armored power influenced U.S. Army doctrine prior to American entry into World War II.