U.S. Army doctrine held that tanks did not fight tanks but supported infantry, and the tank destroyers were formed to be used as a counter to massed formations of enemy armored units, acting as independent battalions attached to divisions or Corps.
Tanks did not fight tanks. This was what U.S. Army doctrine held. Tanks supported infantry. This was what U.S. Army doctrine held. The tank destroyers were formed to be used as a counter to massed formations of enemy armored units, acting as independent battalions. These independent battalions were attached to divisions. These independent battalions were attached to Corps.