Tanks of the United States US allies it was also used in conflicts beyond World War II. A 24-volt electrical system was used in the M4. Early Shermans mounted a 75 mm medium-velocity general-purpose gun. Although Ordnance began work on the Medium Tank T20 as a Sherman replacement, ultimately the Army decided to minimize production disruption by incorporating elements of other tank designs into the Sherman. Later M4A1, M4A2, and M4A3 models received the larger T23 turret with a high-velocity 76 mm M1 gun, which reduced the number of HE and smoke rounds carried and increased the number of anti-tank rounds. Later, the M4 and
Tanks of the U.S. in the Cold War each. While tables of organization and equipment mandated that all tank platoon vehicles be Pershings, with howitzer tanks in company headquarters and light tanks in reconnaissance units only, some units had a shortfall that had to be filled with other tanks. The 70th Tank Battalion at Fort Knox Kentucky had pulled World War II memorial M26s off of pedestals and reconditioned them for use, but had to fill out two companies with M4A3s; the 72nd Tank Battalion at Fort Lewis Washington and the 73rd Tank Battalion at Fort Benning Georgia were fully equipped with M26s; the 89th Medium Tank Battalion