Describe the relationships with Native Americans after America won its independence

Lots of conflict between who gets what land. King George Ill made a boundary line so the colonists couldn't have any contact with Native Americans, but after Americans won their independence, that line was no longer in effect. Americans wanted to expand westward to explore new land, but Native Americans wanted to be independent. Andrew Jackson then made reservations for the Native Americans, and that's how the Trail of Tears started. This was all because of American greed. So, to put it in shorter terms, it was a cat fight, but it was a house cat verusus a lion.