British Admiral Sir George Rodney, with 18 ships-of-the-line, engages an inferior Spanish squadron of 11 battleships commanded by Don Juan de Langara off the southwestern coast of Portugal at Cape St. Vincent, in what comes to be known as The Moonlight Battle. (Ships-of-the-line is the 18th century term for ships substantial enough to be used in a battle line, a tactic of war in which two lines of ships faced off against each other.)
The Spanish, who were at war with the British because they had chosen to back the American rebels in the War for Independence, saw the British fleet in pursuit and attempted to retreat home to the port of Cadiz. As they fled, Rodney decided to ignore the accepted rules of naval engagement, which involved two lines of ships bombarding one another with cannon much like two lines of infantry confronting one another across a battlefield. Instead, he decided to attempt to overtake of the Spanish ships by giving orders of general chase–having each British ship chase the Spanish fleet to the best of its ability. The British hounded the Spanish until 2 a.m., when the Spaniards finally surrendered.
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