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 Meigs An embankment against the interior side provided a parapet. When completed, the fort was the largest wooden walled fortification in North America. The First Siege: On May 1, 1813, British allied forces, under General Henry Proctor and Chief Tecumseh, opened a bombardment of the fort, which had mustered 1,200 regulars and militia, and laid siege. Reinforcements reached the fort on May 4, increasing its garrison to 2,800. Early on the morning of May 5, a detachment from Clay's brigade under Colonel William Dudley landed from boats on the north bank of the river, stormed the British batteries on the north