In 1980, the Supreme Court of the United States ruled in "United States v. Sioux Nation of Indians" that the federal government had illegally stolen the Black Hills from the Sioux people when it unilaterally broke a treaty guaranteeing the Black Hills to them. As a result, the federal government offered a financial settlement, but the Lakota Sioux declined on the principle that the theft of their land should not be validated. They still demand the return of the land. The settlement funds accrue interest. This land includes Rapid City, by far the largest modern settlement in the Black Hills. As of 2019, the dispute has not been settled.