While the invasion had been averted, England was unable to take advantage of this success. An attempt to use her newfound advantage at sea with a counter-armada the following year failed disastrously with 40 ships sunk and 15,000 men lost. Likewise, English buccaneering and attempts to seize territories in the Caribbean were defeated by Spain's rebuilt navy and their improved intelligence networks (although Cádiz was destroyed by an Anglo-Dutch force after a failed attempt to seize the treasure fleet). The Habsburgs also struck back with the Dunkirkers, who took an increasing toll on Dutch and English shipping.