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
Battle of Gettysburg, Third Day cavalry battles Michigan Cavalry were armed with Spencer repeating rifles, multiplying their firepower. Stuart decided on a direct cavalry charge to break their resistance. He ordered an assault by the 1st Virginia Cavalry, his own old regiment, now in Fitz Lee's brigade. The battle started in earnest at approximately 1:00 p.m., at the same time that Col. Edward Porter Alexander's Confederate artillery barrage opened up on Cemetery Ridge. Fitz Lee's troopers came pouring through the farm of John Rummel, scattering the Union skirmish line. Gregg ordered Custer to counterattack with the 7th Michigan. Custer personally led the regiment, shouting "Come on, you