Did you know that the US government actually had a policy of assimilation? They tried to force Native Americans to adopt white culture and forget their own traditions. It was a pretty odd and failed attempt to solve the "Indian problem".
The Bureau of Indian Affairs was also created to manage Native American reservations. But, instead of helping, it often made things worse due to mismanagement and corruption. It's a pretty Wild West story, full of twists and turns.
The Sand Creek Massacre 1864 - Defeat and demise of the Native
