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 Erie Siege of Fort Erie The Siege of Fort Erie was one of the last and most protracted engagements between British and American forces during the Niagara campaign of the American War of 1812. From 4 August to 21 September 1814, the Americans successfully defended Fort Erie against a British army. During the siege, the British suffered heavy casualties in a failed storming attempt and also suffered from sickness and exposure in their rough encampments. Unaware that the British were about to abandon the siege, the American garrison later launched a sortie to destroy the British siege batteries, during which both