Gall, Lakota Phizí, was an important military leader of the Hunkpapa Lakota in the Battle of the Little Bighorn. He spent four years in exile in Canada with Sitting Bull's people, after the wars ended and surrendered in 1881 to live on the Standing Rock Reservation. He would eventually advocate for the assimilation of his people to reservation life and served as a tribal judge in his later years.

The Battle of the Little Bighorn, known to the Lakota and other Plains Indians as the Battle of the Greasy Grass, and commonly referred to as Custer's Last Stand, was an armed engagement between combined forces of the Lakota Sioux, Northern Cheyenne, and Arapaho tribes and the 7th Cavalry Regiment of the United States Army. The battle, which resulted in the defeat of U.S. forces, was the most significant action of the Great Sioux War of 1876. It took place on June 25–26, 1876, along the Little Bighorn River in the Crow Indian Reservation in southeastern Montana Territory.