 Complete the following phrase:  Prior to the war Italy had invaded Albania and officially annexed it. Mussolinis regime declared war on Britain and France on 10 June 1940, and invaded Greece on 28 October. However, Italian forces were unable to match the Nazi successes in northwest Europe; in fact, it was not until German intervention that Greece was overrun by the Axis powers. While the Greek campaign was underway, German forces, supported by the Italians, Hungarians and the Bulgarians simultaneously 