The French Attack Fort Necessity
Following the massacre, Washington pulled back several miles and established Fort Necessity, which the French then attacked on July 3. The engagement led to Washington's surrender; he negotiated a withdrawal under arms.
One of Washington's men reported that the French force was accompanied by Shawnee, Delaware, and Mingo—just those Tanaghrisson was seeking to influence.
Fort Necessity National Battlefield is a National Battlefield Site preserving elements of the Battle of Fort Necessity in Fayette County, Pennsylvania, United States. The Battle of Fort Necessity occurred on July 3, 1754 and was an early battle of the French and Indian War.