This Day in American Military History

5 September 1781: Although no American sailors were involved, the Battle of Chesapeake Bay was crucial in the war for American independence. Taking place off the Virginia Capes, the French fleet defeated the Royal Navy fleet, which suffered the loss or damage of five ships. More importantly, under the command of Rear Admiral Sir Thomas Graves, the Royal Navy fleet could not bring relief to General Cornwallis.

Brandus, Paul. This Day in U.S. Military History (p. 217). Bernan Press. Kindle Edition.