[FRENCH AND INDIAN WAR]. Autograph letter signed, London, 28 October 1755. One-page, 8vo (241 x 184 mm), on stub, docketed on verso, old folds, few small ink stains. IN THE COUNTRY OF THE MOHAWK INDIANS. James Graham of London writes to an unknown correspondent regarding his brother who was at the time making his way to the falls of Niagara. During the French and Indian War (1754-1763), Fort Niagara was a key military outpost situated at the convergence of the Great Lakes and the Niagara River, which made it a focal point in the struggle. Both the French and British recognized its significance in controlling access to the interior of the continent. The British sought to capture Fort Niagara to secure dominance in the region and gain control of vital trade routes. In 1759, the British, led by Sir William Johnson and Colonel John Prideaux, successfully besieged the fort, marking a turning point in the war. The Treaty of Paris in 1763 ultimately concluded the conflict, with France ceding Canada to Britain and reshaping the geopolitical landscape of North America.