The United States began to expand west during the middle eighteen hundreds. People settled in the great open areas of the Dakotas, Utah, Wyoming, and California.The movement forced the nation to deal with great tribes of Native American Indians. The Indians had lived in the western territories for hundreds of years.Settlers and cattle ranchers pushed the Indians out of their homelands. The result was a series of wars between the tribes and the federal government.This week in our series, Steve Ember and Sarah Long tell about some of these conflicts.At first, the United States government had just one policy to deal with the Indians. It was brutal. Whenever white men wanted Indian land, the tribes were pushed farther west.If the Indians protested, or tried to defend their land, they were destroyed with crushing force.