Reservation activist Sitting Bull had a profound influence on Native American rights and the struggle against displacement. As a leader of the Hunkpapa Lakota Sioux, he advocated for the protection of Native lands and cultures against U.S. government policies. His resistance during events like the Battle of Little Bighorn symbolized the fight for sovereignty and justice. Sitting Bull's legacy remains significant in contemporary discussions about indigenous rights, emphasizing the importance of preserving cultural identity and advocating for equal treatment.