The French held the fort successfully early in the war, turning back the expedition led by General Edward Braddock during the 1755 Battle of the Monongahela. George Washington served as one of General Braddock's aides. A smaller attack by James Grant in September 1758 was repulsed with heavy losses. Two months later, on November 25, the Forbes Expedition under General John Forbes took possession Fort Duquesne after the French destroyed and abandoned the site.