55th (Westmorland) Regiment of Foot of Fort Niagara in July 1759. The regiment, as part of General Jeffery Amherst's army, participated in the Battle of Ticonderoga and the capture of Fort Crown Point later that month. In 1760 Colonel James Adolphus Oughton took command of the regiment and led it up the Saint Lawrence River: the regiment witnessed the Siege of Montreal in August 1760. William Gansell became the colonel of the regiment in 1762. In summer 1763, volunteers from the regiment were sent to reinforce the British post at Fort Detroit, which was under siege from neighbouring Native Americans led by Pontiac. The British
Fort Defiance (Ohio) had agreed not to settle. Until the War of 1812, Fort Defiance was one of the westernmost outposts in Ohio. William Henry Harrison used it as one base for his attacks against Native Americans during Tecumseh's War, and the fort played a role in the War of 1812 as well. The city of Defiance, Ohio, was founded at the fort's location. In 1904, the site of the fort was chosen for the Defiance Public Library. Fort Defiance served as a reference point for defining the boundary line of land cession in the Treaty of Detroit in 1807. This north-south line