The conflict between the US and tribes on the Great Plains stemmed from land encroachment, leading to the end of Plains Wars through various factors.
The biggest source of conflict between the United States and tribes living on the Great Plains before and during the Plains Wars was the encroachment of settlers, miners, and ranchers on Native American lands, leading to clashes over territory and resources. The end to the Plains Wars was brought about by a combination of factors, including military defeat of Native American tribes, the decline of the buffalo population crucial to their way of life, and the establishment of reservations through government policies.
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