4th Cavalry Regiment (United States) companies of the 4th Cavalry to Fort Clark. This time Mackenzie led a larger and more extensive expedition into Mexico, restored a system of patrols, and reestablished peace in the devastated region of South Texas. Outside Texas, Mackenzie and the 4th Cavalry administered and controlled the Kiowa-Comanche and the Cheyenne-Arapaho reservations for several years, and, after the defeat of George Armstrong Custer's command at the Battle of Little Bighorn in June 1876, forced Crazy Horse and his band of Sioux and the Northern Cheyennes to surrender. In the autumn of 1879, Mackenzie with six companies of the 4th Cavalry subdued
The Great Sioux Massacre 7th Cavalry and a promotion to brevet colonel. Captain Benton refuses and considers resigning his commission out of loyalty to his commander. Major Reno's daughter browbeats her father, who says he will not accept command of the regiment, gives his blessing to Caroline and Benton's marriage and gives up his drinking. In Washington Senator James G. Blaine visits the humbled Custer and tempts him with an offer to be the party's candidate for President of the United States. The Senator informs Custer this can be accomplished through obtaining a reputation through his military exploits in a war with the Indians.