Fort Pitt (Pennsylvania) among Native Americans devastated the tribes of Ohio Valley and the Great Lakes areas. On August 1, 1763, most of the American Indians broke off the siege to intercept the approaching force under Colonel Bouquet. In the Battle of Bushy Run, Bouquet fought off the American Indian attack and relieved Fort Pitt on August 10. In 1772, after Pontiac's War, the British commander at Fort Pitt sold the building to two colonists, William Thompson and Alexander Ross. At that time, the Pittsburgh area was claimed by the colonies of both Virginia and Pennsylvania, which struggled for power over the region.
Fort Sandusky their territory. But in 1761 British General Jeffery Amherst ordered the erection of Fort Sandusky on Sandusky Bay in order to strengthen the line of defense from Fort Detroit, near the western end of Lake Erie, to central Lake Erie, and to Fort Pitt at the confluence of the Allegheny and Monongahela rivers, which controlled access to the Ohio River and the western frontier of the British colonies. The Seven Years' War continued in Europe until 1763 between Britain and France. Fort Sandusky was a small British fort established on the southeastern shore of Sandusky Bay off Lake Erie in