Sitting Bull in their land, as specified in the 1868 Treaty of Fort Laramie. It was alarmed at reports of Sioux depredations (encouraged by Sitting Bull). In November 1875, President Grant ordered all Sioux bands outside the Great Sioux Reservation to move onto the reservation, knowing full well that not all would comply. As of February 1, 1876, the Interior Department certified as "hostile" those bands who continued to live off the reservation. This certification allowed the military to pursue Sitting Bull and other Lakota bands as "hostiles". Based on tribal oral histories, historian Margot Liberty theorizes many Lakota bands allied with
Arnold Short Bull Arnold Short Bull Arnold Short Bull (Lakota: Tȟatȟáŋka Ptéčela) (c. 1845-1923), a member of the Sičháŋǧu (Brulé) Lakota tribe of Native Americans, instrumental in bringing the Ghost Dance movement to the reservations. Arnold Short Bull was born around 1845. He was active in the Ghost Dance religious movement of 1890, and had traveled with fellow Lakota Kicking Bear to Nevada to visit the movement's leader, Wovoka. The two were instrumental in bringing the movement to the Lakota living on reservations in South Dakota. Following the fatal shooting of Sitting Bull, Short Bull was imprisoned at Fort Sheridan, Illinois. On his