Georgia, legal case in which the U.S. Supreme Court on March 3, 1832, held (5–1) that the states did not have the right to impose regulations on Native American land. ... Andrew Jackson refused to enforce the ruling, the decision helped form the basis for most subsequent law in the United States regarding Native Americans.
Overpopulation causes fierce rivalries to control resources. Territorial conflicts over resources are due in many cases to geopolitical tensions and can end in war.
When Spain first enslaved Native Americans on Hispaniola, and then replaced them with captive Africans, it established slave labor as the basis for colonial sugar production.