Siege of Fort Pitt Siege of Fort Pitt The Siege of Fort Pitt took place during June and July 1763 in what is now the city of Pittsburgh, Pennsylvania, United States. The siege was a part of Pontiac's War, an effort by Native Americans to remove the British from the Ohio Country and Allegheny Plateau after they refused to honor their promises and treaties to leave voluntarily after the defeat of the French. The Native American efforts of diplomacy, and by siege, to remove the British from Fort Pitt ultimately failed. This event is best known as an early instance of biological warfare, where
Siege of Donegal Crown forces were able to use Donegal as a base to capture the strategic town of Ballyshannon. Conn O'Donnell was killed during the siege, while fighting for the Crown. Siege of Donegal The Siege of Donegal took place in 1601 during Tyrone's Rebellion when a force led by Hugh Roe O'Donnell laid siege to the settlement of Donegal. The garrison of the town were a mixture of Irish Army troops and Gaelic forces loyal to the Crown led by Niall Garve O'Donnell. Heavy fighting took place during the month-long siege in which Donegal Abbey was wrecked by an accidental gunpowder