United States Cavalry States Cavalry fought in virtually every campaign in the north during the American Civil War. The U.S. Cavalry played a prominent role in the American Indian Wars, particularly in the American Old West. Particularly notable were the 7th Cavalry, associated with General George Armstrong Custer and the Battle of the Little Bighorn, and the 9th and 10th Cavalry, the Buffalo Soldiers. Infantry units, called by the Indians "walkaheaps", were also involved and in some cases were the main force deployed. Infantry, when mounted, were called "mounted infantry"; they lacked training and skill in horsemanship and cavalry tactics. A notable cavalry
7th Cavalry Regiment September 1866 at Fort Riley, Kansas, as part of an expansion of the regular army following the demobilization of the wartime volunteer and draft forces. From 1866 through 1871, the regiment was posted to Fort Riley and fought in the American Indian Wars. In the Battle of the Washita in 1868, the regiment sustained 22 losses, while inflicting more that 150 deaths on a Cheyenne encampment, mostly women and children . This attack was led by George Armstrong Custer, who later led the 7th Cavalry to the most calamitous defeat of U.S. forces in the Indian Wars. Typical of post-Civil