08/22/2026
Ft. Stanwix in New York became a target of the British in the Saratoga Campaign, and they sent Brig. Gen. Barry St. Leger to capture it in early August 1777. When they arrived and demanded its surrender, American Col. Peter Gansevoort refused and both sides settled in for a siege. In response, the British and their allies ambushed one of the fort’s relief columns resulting in the Battle of Oriskany. While the British achieved a tactical victory there, Gansevoort, still stationed at Fort Stanwix, sent men to loot the nearby British and Native camps, which damaged the alliances between the British and Native tribes.
On August 12, American Gen. Benedict Arnold led another column of reinforcements towards the fort. Being outnumbered, Arnold ensured the British received false information that he was coming with 3,000 troops, instead of the 700 he had. This information, on top of the discontent of their Native allies, convinced the British to abandon their siege of Fort Stanwix August 22, 1777.
The American Battlefield Trust's summary of the Revolutionary War Siege of Fort Stanwix from August 2 - August 22, 1777.