The Indian Removal Act and the Trail of Tears are the two options that changed the way Native Americans owned land and forced them to assimilate. The Indian Removal Act, passed in 1830, authorized the removal of Native American tribes from their ancestral lands in the southeastern United States to territories west of the Mississippi River. The forced relocation of tribes, including the Cherokee Nation, resulted in the Trail of Tears, a devastating journey that led to the death of thousands of Native Americans. Therefore, the correct answer is the Indian Removal Act and the Trail of Tears. The Dawes Act and the Treaty of Fort Laramie are also significant actions affecting Native Americans but did not specifically force assimilation as requested in the question.
