[4] Their ultimate objective was to seize the islands of Hormuz and Bahrain, in order to block Portuguese access to the Persian Gulf and thus reestablish Ottoman control of the Indian Ocean trade.
The recently built Fort Al-Mirani was besieged for 18 days with one piece of Ottoman artillery brought on top of a ridge.
Lacking food and water, the 60 Portuguese garrison and its commander, João de Lisboa, agreed to surrender, only to be taken as captives.
Ultimately, they managed to occupy and control the coasts of Yemen, Aden, and Arabia, as far north as Basra, so as to facilitate their trade with India and block the Portuguese from attacking the Hijaz.
[4] Seydi Ali Reis and his galleys would be attacked in an ambush by Portuguese forces while he was trying to bring back his float from Basra to Suez in August 1554.