Congress passes the Appropriations Act to steal prime land from the Plains tribes for American settlement and to confine Indians to undesired land and restrict their movement, subdue them, and make them essentially dependent on the U.S. According to the law, Indians were under mandate for internment and prohibited from leaving reservations, even for traditional food gathering, hunting, or fishing activities. In rare cases, individuals could leave only if they were granted explicit permission from a government agent. Tribes actively resisted internment and the stealing of their lands, and U.S. history books refer to this resistance as the Plains “Indian wars.” After several massacres and all-out assaults on Indian nations, the U.S. Army ultimately succeeded in relocating most Indian tribes onto reservations, opening up Native lands to settlers. During reservation confinement, the U.S. instituted a food ration and commodities diet to feed the interned, introducing wheat flour, grease, and sugar into American Indian diets. Starvation was common, and living in close quarters spread disease rapidly when there were outbreaks from contact with outsiders. The lack of hunting combined with government dependency forced tribal members to start adopting non-Indian clothing and to raise livestock. Missionaries worked on reservations to convert tribal members as well. (https://www.loc.gov/law/help/statutes-at-large/29th-congress/c29.pdf)