American Indian Wars

As American settlers spread and expanded westward across the United States after 1780, armed conflicts increased in size, duration, and intensity between settlers and various Indian tribes. The climax came in the War of 1812, when major Indian coalitions in the Midwestern United States and the Southern United States fought against the United States and lost. Conflict with settlers became less common and was usually resolved by treaties between the federal government and specific tribes, which often required the tribes to sell or surrender land to the United States. These treaties were frequently broken by the U.S. federal government.
The Indian Removal Act of 1830 that was passed by the United States Congress neither authorized the unilateral abrogation of treaties guaranteeing Native American land rights within the states, nor the forced relocation of the eastern Indians.