Battle of Slim Buttes on the Little Big Horn." "By June 23, 1876, Sitting Bull's Camp, following the Rosebud Battle, more than doubled in size to over 1000 lodges and 7000 inhabitants. There were an estimated 1500 to 2000 warriors from Northern Cheyenne and five major Sioux tribes. The Indians had no intention of fleeing. They were determined to stand and fight." On June 25 and 26, 1876, George Armstrong Custer and the 7th Cavalry (with 468 fatalities and 55 wounded) were defeated at the Battle of the Little Big Horn by Sioux and Cheyenne warriors. News of the defeat of George Armstrong Custer
Thomas Custer in the Yellowstone Expedition of 1873, where he fought in the Battle of Honsinger Bluff, and the Black Hills Expedition of 1874. Custer was appointed captain in 1875 and given command of Company C of the 7th Cavalry. In 1874, at the trading post at Standing Rock Agency, Custer participated in the arrest of chief Rain-in-the-Face (Lakota), suspected in the 1873 murder of Dr. John Honsinger. During the 1876 Little Bighorn campaign of the Black Hills War, he served as aide-de-camp to his older brother Lt. Col. George A. Custer and died with his brother on June 25, 1876. Lt.