Buffalo Soldiers originally were members of the 10th Cavalry Regiment of the United States Army, formed on September 21, 1866, at Fort Leavenworth, Kansas. This nickname was given to the Black Cavalry by Native American tribes who fought in the Indian Wars. The term eventually became synonymous with all of the African-American regiments formed in 1866:
9th Cavalry Regiment
10th Cavalry Regiment
24th Infantry Regiment
25th Infantry Regiment
Second 38th Infantry Regiment