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
Dodecanese campaign when Italian forces recaptured the island of Kastellorizo from British commandos. After the Battle of Greece in April 1941 and the Allied defeat in the Battle of Crete in May 1941, Greece and its many islands were occupied by the Axis powers. With the defeat of Axis forces in the North African campaign in spring 1943, Winston Churchill, the British Prime Minister, who at least as far back as the Gallipoli campaign in World War I had a deep interest in the region, turned his sights on the islands. The British envisaged an operation to capture the Dodecanese and Crete,