The Iroquois Confederacy (also known as the "League of Peace and Power", the "Five Nations"; the "Six Nations"; or the "People of the Longhouse") is a group of Native Americans that originally consisted of five nations: the Mohawk, the Oneida, the Onondaga, the Cayuga, and the Seneca. A sixth tribe, the Tuscarora, joined after the original five nations were formed.