Historical overview of Italian military activities in Eritrea during World War II, focusing primarily on the period from 1940 to 1941, when the region was isolated after Italy entered the war. One major focus is the Italian Red Sea Fleet's operations from June 1940 to April 1941, detailing naval units, engagements, and the ultimate destruction or retreat of the fleet due to overwhelming British forces and critical shortages of supplies. A second key area describes the aerial links and long-range missions conducted by the Italian Air Force using transport aircraft like the Savoia-Marchetti SM75 and SM83, including efforts to resupply the isolated East African colonies and the daring Rome-Tokyo flight in 1942.