In the 1782 Battle of the Saintes, Vaudreuil was credited with saving most of the French Navy's ships in the disastrous defeat. Since De Grasse was taken prisoner Vaudreuil took command of the entire French fleet in America. Afterward, Vaudreuil was on the flagship "Triumphant" in Boston harbor. He commanded the squadron intended to attack the British-ruled island of Jamaica, and for that purpose welcomed Capt. John Paul Jones as an American naval officer volunteer, when word came that the war had ended by treaty in early 1783. Vaudreuil was then responsible for bringing the victorious French army of Rochambeau back to France.