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.
Siege of Fort Wayne joined by 800 men of the Ohio militia under Colonel Adams and Colonel Hawkins at Shane's Crossing. On 11 September, Winamac attempted one last attack on Fort Wayne, and suffered severe casualties. Suddenly, on 12 September, the attack was broken off, and Winamac's forces crossed the Maumee River and disappeared into the woods. Harrison's relief army marched towards the fort, uncontested by Winamac. The Potawatami/Miami force retreated into Ohio and Michigan Territory. The siege of Fort Wayne prompted Harrison to order punitive expeditions against the Miami which culminated in the Battle of the Mississinewa in December, 1812. Influential Miami Chief