 In August 1537, Lütfi Pasha and Barbarossa led a huge Ottoman force, in which Salih Reis also took part, that captured the Aegean and Ionian islands belonging to the Republic of Venice, namely Syros, Aegina, Ios, Paros, Tinos, Karpathos, Kasos and Naxos.In the same year Barbarossa captured Corfu from Venice and once again raided Calabria.These losses caused Venice to ask Pope Paul III to organize a Holy League against the Ottomans.