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
George Armstrong Custer Hills region from the Sioux. When the Sioux refused to sell, they were ordered to report to reservations by the end of January, 1876. Mid-winter conditions made it impossible for them to comply. The administration labeled them "hostiles" and tasked the Army with bringing them in. Custer was to command an expedition planned for the spring, part of a three-pronged campaign. While Custer's expedition marched west from Fort Abraham Lincoln, near present-day Mandan, North Dakota, troops under Colonel John Gibbon were to march east from Fort Ellis, near present-day Bozeman, Montana while a force under General George Crook was to