Although Custer is referred to as a general, post-1866 his rank was Lieutenant Colonel. He received "brevet" promotion to Lt. General and upon the end of the war was permanently promoted to Major General in the Volunteer Army, but was mustered out of that in 1866. When transferring to the cavalry his rank was set as Lt. Col. The uniform he typically wore while in the cavalry was not the blue uniform commonly seen in TV, but wore more of a Buffalo Bill style attire.