The city , before then a possession of the King of Hormuz , had been in Portuguese hands since 1507 , when a Portuguese fleet under Afonso de Albuquerque attacked Attack the city , destroyed Destroying it , and then came back Arriving soon after to occupy Control it .

The ultimate objective was to seize the islands of Hormuz and Bahrain , in order to block Portuguese access to the Persian Gulf and thus reestablish Recovering Ottoman control of the Indian Ocean Trade .