The Spanish Main became a frequent target for pirates, buccaneers, privateers and countries at war with Spain, seeking to capture some of these riches. To protect this wealth, the Spanish treasure fleet was equipped with heavily armed galleons. The organization of the fleets in large convoys proved highly successful, with only a few successful examples of major privateer attacks along the Spanish Main, such as the capture of Cartagena de Indias by Francis Drake in 1586; the capture of a Spanish treasure fleet sailing from Mexico by the Dutch West India Company in 1628; the capture of Chagres and Panama City by Henry Morgan in 1670–71; and the Raid on Cartagena by the French in 1697. Pirates operating in the area included the Dutchman Laurens de Graaf, who raided Veracruz in 1683 and Cartagena in 1697.