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
Massacres during the Greek War of Independence the islands in the Aegean Sea, in the early years of the Greek revolt. According to historian William St. clair, one of the aims of the Greek revolutionaries was to embroil as many Greek communities as possible in their struggle. Their technique was ""to engineer some atrocity against the local Turkish population"", so that these different Greek communities would have to ally themselves with the revolutionaries fearing a retaliation from the Ottomans. In such a case, in March 1821, Greeks from the Samos island had landed in the Island Chios and attacked the Muslim population living in that island. The