The Battle of Fort Bull was a French attack on the British-held Fort Bull on 27 March 1756, early in the French and Indian War. The fort was built to defend a portion of the waterway connecting Albany, New York to Lake Ontario via the Mohawk River.Lt. Gaspard-Joseph Chaussegros de Léry led his command consisting of forces from the Troupes de la Marine, Canadien militia, and Indian allies on an attack against Fort Bull on 27 March 1756.