I think most Americans agree that in the past both European settlers and later generations of Americans treated Indians (now called Native Americans) very badly. Treaties between the U.S. and sovereign Indian tribes were unequal or broken. The government sought to replace the population of Indian territories with a new society of white settlers. As white settlers spread westward across America after 1780, armed conflicts increased between the settlers and Indians. The Indian Removal Act of 1830 authorized the U.S. government to enforce the Indian removal from east of the Mississippi River to the West, even though many tribes had extensive territories in that area. As American settlers kept expanding their territories, Indian tribes were relocated to specially designated territories. This policy was known at the time as Manifest Destiny, the belief that the settlers in the United States were destined to expand across North America because of the special virtues of the American people and their institutions, including the Christian religion. This was nothing new. Beginning with Christopher Columbus, many Native Americans were enslaved and forced to convert to Christianity. They lost their land and were later forcibly put onto reservations, leaving the rich land they had lived on for Christian settlers ready to work for God and Country.