Between 1713 and 1714, a succession of peace treaties was signed which ended the War of the Spanish Succession. With the end of this conflict, thousands of seamen, including Britain's paramilitary privateers, were relieved of military duty. The result was a large number of trained, idle sailors at a time when the cross-Atlantic colonial shipping trade was beginning to boom. In addition, Europeans who had been pushed by unemployment to become sailors and soldiers involved in slaving were often enthusiastic to abandon that profession and turn to pirating, giving pirate captains for many years a constant pool of trained European recruits to be found in west African waters and coasts.