 In 1600 Dutch corsairs under Olivier van Noort were preying on shipping entering Manila harbor.According to Morga's account, Governor Francisco de Tello de Guzmán and the Audiencia appointed Morga to go to Cavite and assemble, equip and supply a fleet to attack the Dutch (October 31, 1600).The ships available were the "San Diego", the "San Bartolomé" and some smaller vessels.