The Moros not only plundered goods, but also took prisoners of war which they sold as slaves. Many Islamic leaders in Mindanao, in spite of the peace settlement with the Spaniards contained in treaties and formal agreements, supported piratical raids with arms, ammunition and food, not only because it was a patriotic act (defending Moroland), but this patriotism was also giving them handsome profits. They received part of the "prisoners of war" when a successful raider returned, which earned them huge amounts.