 He also said "The slaves of the Portuguese at Macau served them so well and faithfully, that it was they who defeated and drove away our people there last year", and "Our people saw very few Portuguese" during the battle.Coen would from there on advocate for the employment of slaves for warfare in preference to Dutch soldiers.While the Portuguese didn't give the blacks primary credit for the victory, they nonetheless appreciated the bravery shown by the slaves so much that many slaves were freed on the battlefield immediately after the victory.