Medicine Lodge Treaty

Ten Bears, a Comanche
signer of the
Medicine Lodge Treaty

(Wikipedia) The Medicine Lodge Treaty is the overall name for three treaties signed between the United States government and southern Plains Indian tribes in October 1867, intended to bring peace to the area by relocating the Native Americans to reservations in Indian Territory and away from European-American settlement.
The treaty was negotiated after investigation by the Indian Peace Commission, which in its final report in 1868 concluded that the wars had been preventable. They determined that the United States government and its representatives, including the United States Congress, had contributed to the warfare on the Great Plains by failing to fulfill their legal obligations and to treat the Native Americans with honesty. Continued