In March 1776, John Butler sent a party of about 100 allied Indians to Montreal to force the Americans out of Quebec. In May, Butler received instructions to use a warrior party of the Six Nations in an attack on New York. On June 5 he received instructions to send as many Indians as he could to Fort Oswego for an attack on Fort Stanwix as a part of the Saratoga campaign. He was put second in command of the Indians, primarily warriors of bands of four nations of the Iroquois, under Daniel Claus.