Treaty of Fort Laramie (1868)

The Treaty of Fort Laramie (also the Sioux Treaty of 1868) is an agreement between the United States and the Oglala, Miniconjou, and Brulé bands of Lakota people, Yanktonai Dakota, and Arapaho Nation. The first Fort Laramie treaty, signed in 1851, had been a resounding failure.

Source: Wikipedia — Treaty of Fort Laramie (1868) (CC BY-SA 4.0)