 He rescued the Khan of Crimea, Meñli I Giray, from Genoese forces.As a result of this campaign, Crimea and Circassia entered into the Ottoman sphere of influence.In 1479, when he was a sanjakbey of the Sanjak of Avlona, Sultan Mehmet II ordered him lead a siege force of between 10,000 and 40,000 troops in the siege of Shkodra.