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
Massacre of the Acqui Division of the defence, Gandin and his men were either mutineers or "franc-tireurs" and did not qualify for POW status under the Geneva conventions. The Germans justified their behaviour by claiming the Italians were negotiating the surrender of the island to the British. The German claim was not entirely unfounded: in the Greek mainland, an entire division went over to the Greek guerrillas, and in the Dodecanese, the Italians had joined forces with the British, resulting in a two-month German campaign to evict them. An attempt to revisit the case by the Dortmund state prosecutor Johannes Obluda in 1964 came to