List of tank destroyer units of the United States Army

These battalions were to be concentrated in regiment-sized groups and brigades when needed to combat large forces of enemy tanks.

[3] The initial role of these units was to oversee the training of the large number of tank destroyer battalions that had been previously formed.

[7] In practice, tank destroyer battalions were usually attached directly to infantry divisions and there was no need for the group headquarters to command them.

[10] 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.