The author presents an extremely detailed record of the organization, doctrine, and equipment of the Armored Division of September 1943. He examines each unit of the division. A chapter is dedicated to the Tank Battalion, Armored Infantry Battalion, but also Maintenance and Medical Battalions. The author examines the organization and tactical doctrine of each unit and studies the doctrine of employment of the unit, as well as the duties of key personnel. Each sub-unit is presented by lists of personnel, weapons, vehicles, and equipment. The book includes 146 charts depicting the organization of all units. In each chapter, a special paragraph examines the modifications made in the field by armored division’s units, as found in unit reports, and histories, and veterans recollections. This is an essential reference for re-enactors, modellers, wargamers, researchers, and all those who require a detailed guide to the U.S. Armored Division during WWII.