The Northwest Indian War, also known as the Ohio War, Little Turtle's War, and by other names, was a war between the United States and the Northwestern Confederacy, with support from the British, for control of the Northwest Territory. It followed centuries of conflict over this territory, first among Native American tribes, and then with the added shifting alliances among the tribes and the European powers of France and Great Britain, and their colonials. The United States Army considers it their first of the United States Indian Wars.
Article 2 of the Treaty of Paris, which ended the American Revolutionary War, used the Great Lakes as a border between British territory and that of the United States. Numerous Native American peoples inhabited this region, known to the United States as the Ohio Country and the Illinois Country. Despite the treaty, which ceded the Northwest Territory to the United States, the British maintained a military presence in their forts there and continued policies that supported the Native Americans.