Based on this excerpt from the Dawes Severalty Act, United States domestic policy toward Native Americans in the late 1800s made an attempt to

Assuming that you're referring to the Dawes Severalty Act, 1887,

United States domestic policy toward Native Americans in the late 1800s made an attempt to: force Native American Indians to give up their traditional cultures

The act requires the Native Indian lands to gave up their lands so that it could be transformed into the government owned reservation.