A combat command was a combined-arms military organization of comparable size to a brigade or regiment employed by armored forces of the United States Army from 1942 until 1963.
When the first U.S. armored divisions were organized a few years later, Chaffee's concepts for the combat command were incorporated into the divisional structure.
[2] During a U.S. Army reorganization in the 1960s, the term combat command fell out of favor and was replaced by the designation brigade.
While flexible, this task-force organization lacked the high cohesion characteristic of traditional regiments that always kept the same group of battalions together.
During the latter stages of World War II in Europe, armored divisions tended to fight with CCA and CCB, while moving worn-out battalions into CCR for rest and refit, though this was not always the case.