Why did the Treaty of 1868 Indians fail?

The Treaty of 1868, which aimed to establish peace between the U.S. government and the Sioux Nation, ultimately failed due to several factors. Key among these was the U.S. government's inability to uphold its commitments, particularly regarding land protection and the rights of the Sioux to their territory. Additionally, external pressures such as the influx of settlers and gold prospectors into the Black Hills exacerbated tensions, leading to further conflicts. The treaty's breakdown reflected the broader pattern of treaty violations and broken promises experienced by Native American nations.