Italian colonists in the Dodecanese especially in Rhodes and Leros. The Kingdom of Italy occupied the Dodecanese Islands in the Aegean sea during the Italian-Turkish war of 1911. In the 1919 Venizelos-Tittoni Agreement, Italy promised to cede the overwhelmingly Greek-inhabited islands, except Rhodes, to Greece, but this treaty was never implemented due to the Greek catastrophe in Asia Minor. With the Treaty of Lausanne in 1923, the Dodecanese was formally annexed by Italy, as the "Possedimenti Italiani dell'Egeo". In the 1930s, Mussolini embarked on a program of Italianization, hoping to make the island of Rhodes a modern transportation hub that would serve as a focal
Kasos island formally joined the Kingdom of Greece on 7 March 1948 together with the other Dodecanese islands. Kasos Kasos (; , ), also Casos, is a Greek island municipality in the Dodecanese. It is the southernmost island in the Aegean Sea, and is part of the Karpathos regional unit. , its population was 1084. The island is known in Italian as "Caso". Kasos lies southwest of Karpathos, between this island and Crete. Adjacent to the island is the Strait of Kasos, through which some of the Modified Atlantic Water enters the Sea of Crete. Its shape is elliptic and resembles