Colonel Bouquet, delayed in Pennsylvania while mustering the militia, finally set out from Fort Pitt on October 3, 1764, with 1,150 men. He marched to the Muskingum River in the Ohio Country, within striking distance of a number of Indian villages. Treaties had been negotiated at Fort Niagara and Fort Detroit, so the Ohio Indians were isolated and, with some exceptions, ready to make peace. In a council which began on October 17, Bouquet demanded that the Ohio Indians return all captives, including those not yet returned from the French and Indian War. Guyasuta and other leaders reluctantly handed over more than 200 captives, many of whom had been adopted into Indian families. Not all of the captives were present, so the Indians were compelled to surrender hostages as a guarantee that the other captives would be returned. The Ohio Indians agreed to attend a more formal peace conference with William Johnson, which was finalized in July 1765.