Montreux Convention Regarding the Regime of the Straits of who should control the strategically vital link between the Black Sea and Mediterranean Sea. In 1923 the Treaty of Lausanne had demilitarised the Dardanelles and opened the Straits to unrestricted civilian and military traffic, under the supervision of the International Straits Commission of the League of Nations. By the late 1930s, the strategic situation in the Mediterranean had altered with the rise of Fascist Italy, which controlled the Greek-inhabited Dodecanese islands off the west coast of Turkey and had constructed fortifications on Rhodes, Leros and Kos. The Turks feared that Italy would seek to exploit access to the Straits
Italian Islands of the Aegean Italian Islands of the Aegean The Italian Islands of the Aegean (; ) were a group of twelve major islands (the Dodecanese) in the southeastern Aegean Sea, which — together with the surrounding islets — were ruled by the Kingdom of Italy from 1912 to 1943 and the Italian Social Republic from 1943 to 1945. The Dodecanese, except Kastellorizo, were occupied by Italy during the Italo-Turkish War of 1912. Italy had agreed to return the islands to the Ottoman Empire according to the Treaty of Ouchy in 1912; however the vagueness of the text allowed a provisional Italian administration of