 Despite these issues, the crush of settlers moving into the area meant more European-American people encroaching on Sioux land.As the US had promised increased annuity payments in exchange for more land cessions, Sioux leaders went to Washington, D.C. in 1858 to sign another pair of treaties; these ceded the reservation north of the Minnesota River.The US intended the treaties to encourage the Sioux to convert from their nomadic hunting lifestyle into more European-American settled farming, offering them compensation in the transition.