Dodecanese islands were occupied by the French and British, but Rhodes remained under Italian occupation. In 1915, the French also occupied Kastellorizo. Following the war, the Tittoni–Venizelos agreement, signed on July 29, 1919, called for the smaller islands to join with Greece, while Italy maintained control of Rhodes. The treaty further outlined an exchange where Italy would receive Antalya for southwest Anatolia. The Greek defeat in the Greco-Turkish War and the foundation of modern Turkey prevented the exchange. Italy formally annexed the Dodecanese as the "Possedimenti Italiani dell'Egeo" under the terms of the Treaty of Lausanne. Mussolini embarked on a program
Kastellorizo spread to an adjacent ammunition dump, thereby destroying half of the homes on the island. Kastellorizo was assigned to Greece with the Paris Peace Treaties, 1947. In May 1945 it was still under British administration, but on September 15, 1947 effectively came under Greek administration. The island formally joined the Greek State on 7 March 1948 together with the other Dodecanese islands. The island has become more popular in recent years, among tourists looking for an isolated place in the Dodecanese, thanks also to the 1991 Oscar-winning movie "Mediterraneo", by Gabriele Salvatores, which is set on the island. Kastellórizo was