 They continued to live and hunt in the bison-rich lands of eastern Colorado and western Kansas, becoming increasingly belligerent over the tide of white immigration across their lands.Cheyennes opposed to the treaty said that it had been signed by a small minority of the chiefs without the consent or approval of the rest of the tribe, that the signatories had not understood what they signed, and that they had been bribed to sign by a large distribution of gifts.The whites, however, claimed the treaty was a "solemn obligation" and considered that those Indians who refused to abide by it were hostile and planning a war.