History
During World War II, after the Germans had invaded France, the Italians decided to get involved, and they took part in the final stages of the German assault. Once things had settled down, the Italians began expanding to the South. They had already occupied parts of Africa, but continued their advances into Greece.
The British Royal Air Force had already begun their bombing offensive against the Germans, using Hampdens, Whitleys, and Wellingtons, and later found that four engine aircraft were more appropriate for long range bombing, and supplanted and later replaced these types with Stirlings, Halifaxes, and Lancasters.