What do Chief Satanta's words reveal about the changing frontier?

He was a Kiowa chief who spoke out against the Medicine Lodge Creek Treaty. Frontier was a place where the white man land ended and the Indian land begun. He, as an Indian, did not want to settle, he wanted to roam and be free across the prairie. Statanata said this land belonged to their fathers and he felt sorry for seeing the soldiers and what they have done. For him, the changing frontier meant the end of the Indian life as they know it.