In 1780, a fleet with 6,000 troops commanded by Lieutenant General Jean-Baptiste, comte de Rochambeau landed at Newport, Rhode Island, and shortly afterwards the fleet was blockaded by the British. In early 1781, Washington and de Rochambeau planned an attack against the British in the Chesapeake Bay area to coordinate with the arrival of a large fleet commanded by Vice Admiral François, comte de Grasse. Successfully deceiving the British that an attack was planned in New York, Washington and de Rochambeau marched to Virginia, and de Grasse began landing forces near Yorktown, Virginia. On September 5, 1781 a major naval action was fought by de Grasse and the British at the Battle of the Virginia Capes, ending with the French fleet in control of the Chesapeake Bay. The U.S. Navy continued to interdict British supply ships until peace was finally declared in late 1783.