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 Fort Loudoun and continued to attack frontier settlements into 1760. In February 1760, they attacked Fort Prince George in an attempt to rescue their hostages. The fort's commander was killed. The garrison, in panicked retaliation, massacred all of the hostages. And two days later the fort fired artillery into the town of Keowee. The Cherokee now attacked Fort Ninety Six, but it withstood the siege. However, settlements and lesser posts in the South Carolina backcountry quickly fell to Cherokee raids. The Cherokee were led by Standing Turkey as Principal Chief, Oconostota ("Aganstata") of Chota, Attakullakulla ("Atagulgalu") of Tanasi, Ostenaco of Tomotley, Wauhatchie