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
Sitting Bull with the Blackfeet Nation and Crowfoot. As an advocate for peace himself, Crowfoot eagerly accepted the tobacco peace offering. Sitting Bull was so impressed by Crowfoot that he named one of his sons after him. Sitting Bull and his people stayed in Canada for 4 years. Due to the smaller size of the buffalo herds in Canada, Sitting Bull and his men found it difficult to find enough food to feed his people, who were starving and exhausted. Sitting Bull's presence in the country led to increased tensions between the Canadian and the United States governments. Before Sitting Bull left