In the 1580s, King Philip II of Spain ordered an invasion of England and set about building what would become the Spanish Armada at the naval shipyards of Cádiz. In 1587, Sir Francis Drake captured the harbor and set fire to many of the ships, delaying the launch of the Armada by a year. He also captured 2,900 butts of Sherry that was at the docks waiting to be loaded for ships to South America. The wine that Drake brought back to England only increased the English esteem and thirst for Sherry. William Shakespeare characterized the English's love for "sack" with his character of Sir John Falstaff who most famously noted in Henry IV, Part 2 that "If I had a thousand sons, the first humane principle I would teach them should be, to forswear thin potations and to addict themselves to sack."