American Indian Wars location North America
The American Indian Wars, also known as the American Frontier Wars, and the Indian Wars, were fought by European governments and colonists in North America, and later by the United States and Canadian governments and American and Canadian settlers, against various American Indian and First Nation tribes. These conflicts occurred in North America from the time of the earliest colonial settlements in the 17th century until the early 20th century. The various wars resulted from a wide variety of factors, the most common being the desire of settlers and governments for Indian tribes' lands. The European powers and their colonies also enlisted allied Indian tribes to help them conduct warfare against each other's colonial settlements. After the American Revolution, many conflicts were local to specific states or regions and frequently involved disputes over land use; some entailed cycles of violent reprisal.
As settlers spread 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 US Midwest and the US South 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 US government. The Indian Removal Act of 1830 authorized the US government to force Indian tribes to move from east of the Mississippi River to the west on the American frontier, especially to Indian Territory which became Oklahoma. As settlers expanded onto the Great Plains and the Western United States, the nomadic and semi-nomadic Indian tribes of those regions were forced to relocate to reservations. 
Indian and First Nation tribes and coalitions often won battles with the encroaching settlers and soldiers, but their numbers were too few and their resources too limited to win more than temporary victories and concessions from the U.S. and Canada.
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