Battle of the Chesapeake
5 September 1781, Off the Virginia Capes, at the mouth of Chesapeake Bay
French strategic victory; Cornwallis cut off at Yorktown
Cornwallis's army had dug in at Yorktown, waiting for the navy. De Grasse got there first, bringing his whole fleet up from the West Indies. When Graves arrived from New York, de Grasse came out of the bay to meet him. Only the vans and centres of the two fleets came properly into action, partly because of Graves's confusing signals, and after two hours' fighting at sunset the fleets drifted apart. For several days they manoeuvred within sight of each other, while de Barras's squadron slipped into the bay behind them with the siege guns from Newport. Graves, with several ships badly damaged, went back to New York, and Cornwallis surrendered on 19 October. The war on land in America was over.
Read more on WikipediaRoyal Navy
19 ships, 1 lost
French Navy
27 ships, none lost
Map
De Grasse sails for the Chesapeake August 1781
De Barras brings the siege guns 25 August – 10 September 1781
Graves sails from New York 31 August – 5 September 1781