Siege of Fort William Henry

Battle context

The Siege of Fort William Henry, conducted by Montcalm with a French and Indian force of 6,200 against a British garrison of 2,500 under Lieutenant Colonel George Monro, was a significant French offensive action on the contested frontier between the British Province of New York and the French Province of Canada during the Seven Years' War. Fort William Henry sat at the southern end of Lake George, a position that made it a key point of control on the corridor between the two colonial territories. British casualties of 2,308 out of a defending force of 2,500 indicate that the garrison was effectively destroyed as a fighting force. Monro's force was described as poorly supported, underscoring the exposed character of the British position on this frontier at the time of the siege. The fall of the fort represented a significant French success in the North American theater, removing a British stronghold on the Lake George corridor and extending French operational reach into the New York frontier.