 This meant that in wars involving the two religions, all captives were still liable to be enslaved when captured by the other religion, as regularly happened in the Crusades and the Spanish Reconquista.Coastal parts of Europe remained prey throughout the period to "razzias" or slaving raids by Barbary corsairs which led to many coastal areas being left unpopulated; there were still isolated raids on England and Ireland as late as the 17th century.