 Dissatisfied with this, Lezo took his 60-gun flagship into the corsair's refuge of Mostaganem Bay, a bastion defended by two forts and 4,000 Moors, inflicting heavy damage on the forts and town.In the following months he established a naval blockade, preventing the Algerians from receiving reinforcements from Istanbul and thereby gaining valuable time for the securing of Oran's defense, until an epidemic forced him to return to Cádiz.In 1734 de Lezo was promoted by the king to Lieutenant General of the Navy.