Dodecanese campaign lies in the south-eastern Aegean Sea, and had been under Italian control since the Italo-Turkish War in 1911. During Italian rule, the strategically well-placed islands became a focus of Italian colonial ambitions in the Eastern Mediterranean. Rhodes, the largest of the islands, was a major military and aerial base. The island of Leros, with its excellent deep-water port of Lakki (Portolago), was transformed into a heavily fortified aeronautical base, "the Corregidor of the Mediterranean", as Benito Mussolini, the Italian leader, boasted. An early British attempt to contest Italian control of the Dodecanese, codenamed Operation Abstention, was thwarted in February 1941,
Dodecanese Regiment front, Lt. General Georgios Tsolakoglou, signed with the LSSAH an unauthorized ceasefire protocol, and next day the regiment was ordered to surrender whatever firearms and ammunition they had to the president of Ardomitsa community and then march to Metsovo. On the 24th they reached Metsovo and received new orders to march to Malakasi. Next day they were informed that by a new ceasefire protocol the Greek officers were considered prisoners of war and the Germans were arresting them on sight. On the 26th, one day before Germans entered Athens, the Dodecanese Regiment’s commander succeeded in making contact with the TSKM