British General
Jeffery Amherst made plans for the 1759 military campaigns of the
Seven Years' War that included an expedition to capture
Fort Niagara, a major French military and supply point between the French
province of Canada and their forts in the
Ohio Valley. Amherst chose Brigadier General
John Prideaux to lead the expedition, which also included
Sir William Johnson, the British Indian agent who led the expedition's Iroquois forces. Fort Niagara had been largely constructed under the direction of Captain
Pierre Pouchot of the French Army. In early 1759, General
Louis-Joseph de Montcalm and New France's governor, the
Marquis de Vaudreuil, sent him with about 2,500 men to fortify Niagara beyond the 500 men that had wintered there. Pouchot, under orders from Vaudreuil, sent many of those men south to
Fort Machault in mid-June as part of a plan to reinforce the French forts of the
Ohio Country and attack the British at
Fort Pitt. The forces left to defend Niagara consisted of about 200 men from the regiments of Royal Roussillon, Languedoc, La Sarre, and Béarn, 20 artillerymen, and about 300 provincial troops and militia. Prideaux's
British Army troops consisted of the
44th and
46th Regiments, and two companies from the
60th, numbering about 2,200 men. He also commanded 2500 provincial militia from
New York and 700 from Rhode Island. Delayed by high water on the
Mohawk River and the late arrival of some of the provincial companies, the expedition did not begin leaving
Schenectady until mid-May. On 27 June the army arrived at
Fort Oswego, where they were joined by Johnson and about 600 Iroquois. Leaving men behind to garrison Oswego Prideaux departed on 1 July for Niagara with about 3,200 men. While the French had ships patrolling
Lake Ontario for British movements, inattention on the part of one of the crews allowed the British flotilla to avoid discovery. They arrived at Fort Niagara on 6 July, landed near a marsh out of sight of the fort, and immediately began siege operations. == Siege ==