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.
Ohio in the War of 1812 Maumee River in Perrysburg, Ohio, began. Gen. William Henry Harrison provided these orders. The fort would undergo two sieges. The first was in May. The British assaulted the fort, however, the Americans held the fort. The second siege was in July. Tecumseh, leading the Native American allies to the British, tried to ambush the Americans. However this did not work, and the British and Natives were forced to leave, letting the Americans win again. In September, the Battle of Lake Erie took place, with the Americans led by Oliver Hazard Perry. The British overpowered the Americans in strength and number