What did the federal government intent to do by establishing reservations for the Plains Indians?

The federal government established reservations for Plains Indians primarily to control and assimilate Native American populations into Euro-American society. By confining them to designated areas, the government aimed to reduce conflicts over land and resources as settlers expanded westward. Additionally, the reservations were intended to facilitate the implementation of policies that promoted agriculture and Christianity, thereby encouraging the abandonment of traditional nomadic lifestyles. Ultimately, this approach sought to integrate Native Americans into mainstream American culture while simultaneously undermining their sovereignty and cultural identities.