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 Detroit Fort Detroit Fort Pontchartrain du Détroit or Fort Detroit was a fort established on the west bank of the Detroit River by the French officer Antoine de la Mothe Cadillac in 1701. In the 18th century, French colonial settlements developed on both sides of the river, based on the fur trade, missions and farms. The site of the former fort, north of the Rouge River, is now within the city of Detroit in the U.S. state of Michigan, an area bounded by Larned Street, Griswold Street, and the Civic Center (now occupied by office towers). The fort was taken over