7th Cavalry Regiment the Black Hills, starting a gold rush in 1874 that precipitated the Great Sioux War of 1876–77. In June, 1876, Lieutenant Colonel George A. Custer was killed in the Battle of the Little Bighorn, Montana, along with 267 soldiers of the 7th Cavalry. Although the regiment is well known for the Battle of the Little Bighorn, it also participated in other battles of the American Indian Wars, including the Battle of Bear Paw in Montana (30 September 1877 – 5 October 1877) and the Battle of Crow Agency in Montana (5 November 1887). On 29 December 1890, the regiment instigated
Henry Armstrong Reed Custer. Heavily influenced by his military uncles, he followed in their footsteps and left Monroe in May 1876, with his sister Emma, for Fort Abraham Lincoln in the Dakota Territory. There, he was hired on May 10 to serve as a beef herder for the 7th Cavalry Regiment, which was under the command of George Armstrong Custer. Reed joined the 7th Cavalry Regiment shortly after the start of the Great Sioux War of 1876–77 in the Montana Territory, part of the larger American Indian Wars. While Reed was never officially enlisted as a soldier, he volunteered his services as such