In 1851, the United States government began to introduce a Concentration Policy. This strategy would provide white settlers with the most productive lands and relocate Indians to areas north and south of white settlements. Over the next decade, Indians were evicted from their land to make way for a white society.
The domino theory was a Cold War policy that suggested a communist government in one nation would quickly lead to communist takeovers in neighboring states, each falling like a perfectly aligned row of dominos.