Despite its successes, the Dutch Republic was unable to sustain a prolonged naval war as English privateers inflicted serious damage on Dutch shipping. It is estimated that the Dutch lost between 1,000 and 1,700 vessels of all sizes to privateers in this war, up to four times as many as the English lost, and more than the total Dutch losses for the other two Anglo-Dutch war. In addition, as press-ganging was forbidden, enormous sums had to be paid to attract enough sailors to man the fleet. The Dutch were unable to defend all of their colonies and it had too few colonists or troops in Dutch Brazil to prevent the more numerous Portuguese, dissatisfied by Dutch rule, from reconquest.