Butler's Rangers was a Loyalist provincial military unit of the American Revolutionary War, raised by American loyalist John Butler. Most members of the regiment were Loyalists from upstate New York and northeastern Pennsylvania. The Rangers fought principally in New York and Pennsylvania, but ranged as far west as Ohio and Michigan, and as far south as Virginia and Kentucky. The Rangers were engaged in numerous violent raids that characterized the northern frontier of the American Revolutionary War, such as the Battle of Wyoming in July 1778 and the Cherry Valley massacre of November 1778. During the 1777 Saratoga Campaign, Butler persuaded about 350 Seneca warriors to participate in the Siege of Fort Stanwix, and led a group of Indian Department rangers at the Battle of Oriskany. As a result, Butler was granted permission in September 1777 to raise a “corps of rangers,” and was commissioned as its major commandant. In the summer of 1778, 110 Rangers under the command of Major Butler, accompanied by 464 mostly Seneca warriors, led by Sayenqueraghta and Cornplanter, destroyed the settlements in the Wyoming Valley in northeastern Pennsylvania. Butler's Rangers were disbanded in June 1784, and its veterans were given land grants in the Nassau District, now the Niagara region of Ontario, as a reward for their services to the British Crown.