In 1776, Cherokee war parties attacked American Colonists all along the southern frontier of the uplands throughout the Washington District, North Carolina (now Tennessee) and the Kentucky wilderness area. They would launch raids with roughly 200 warriors, as seen in the Cherokee–American wars; they could not mobilize enough forces to invade Colonial areas without the help of allies, most often the Creek. The Chickamauga Cherokee under Dragging Canoe allied themselves closely with the British, and fought on for an additional decade after the Treaty of Paris was signed. Joseph Brant of the powerful Mohawk tribe in New York was the most prominent indigenous leader against the Patriot forces. In 1778 and 1780, he led 300 Iroquois warriors and 100 white Loyalists in multiple attacks on small frontier settlements in New York and Pennsylvania, killing many settlers and destroying villages, crops, and stores. The Seneca, Onondaga, and Cayuga of the Iroquois Confederacy also allied with the British against the Americans.