List of tank destroyer units of the United States Army

Two tank destroyer brigades were formed in November 1942. The initial role of these units was to oversee the training of the large number of tank destroyer battalions that had been previously formed. The 1st Tank Destroyer Brigade was dispatched to Europe in January 1944 and the 2nd Tank Destroyer Brigade was disbanded in the United States during March that year. In August and September 1944 the 1st Tank Destroyer Brigade commanded the ad-hoc Task Force A which was tasked with seizing ports in Brittany. Its staff subsequently served as advisers in the headquarters of the Third Army. • 1st Tank Destroyer Brigade • 2nd Tank Destroyer Brigade ==Groups==

3-inch gun M5 towed anti-tank gun at Le Bourg St-Leonard, France during August 1944 Twenty four tank destroyer groups were formed. US Army doctrine called for at least one tank destroyer group to be attached to each corps and army. In practice, tank destroyer battalions were usually attached directly to infantry divisions and there was no need for the group headquarters to command them. The tank destroyer group headquarters which were dispatched overseas were often used as advisers to corps headquarters to provide advice on anti-tank issues, or for other purposes, such as traffic management and controlling units in rear areas. Group headquarters only occasionally undertook combat missions. ==Battalions==

s as of March 1944 Each tank destroyer battalion was assigned 36 self-propelled or towed anti-tank guns. They also included reconnaissance and anti-aircraft elements. From a high of 220 battalions, the number was reduced in April 1943 to 106 because of concerns over the value of the tank destroyer concept and competing demands for manpower. In late 1943, the War Department received permission to inactivate twenty-five tank destroyer battalions. The personnel from inactivating battalions were either assigned to existing tank destroyer battalions still in training, or to other types of units. Beginning in 1944, they were also assigned to nine non-divisional infantry regiments or the Replacement and School Command for retraining as infantry replacements. whereupon they were assigned to understrength infantry divisions still stateside, or were sent overseas as individual replacements. Eleven tank destroyer battalions, one of which was overseas, were converted en bloc to other types of units that were more in demand, such as chemical, tank, armored field artillery or amphibian tractor units. The tank destroyer battalions that had been formed from National Guard infantry antitank battalions and the antitank assets of field artillery units in National Guard infantry divisions and field artillery brigades were allotted to states in 1942, but with the disbandment of the tank destroyer branch after the war, these allotments were withdrawn. Campaign credit key 600s 700s 800s ==Training units==

A number of units responsible for tank destroyer doctrine development and training were also established. They included: • Tank Destroyer Center (originally formed as the Tank Destroyer Command) • Tank Destroyer Board • Tank Destroyer School • Tank Destroyer Unit Training Center • Tank Destroyer Training Brigade • Tank Destroyer Replacement Training Center • Tank Destroyer Basic Unit Training Center ==See also==