Italian East Africa Ababa, to proclaim an empire by May 1936, making Ethiopia part of Italian East Africa. The Italian victory in the war coincided with the zenith of the international popularity of dictator Benito Mussolini's Fascist regime, during which colonialist leaders praised Mussolini for his actions. Mussolini's international popularity decreased as he endorsed the annexation of Austria by Nazi Germany, beginning a political tilt toward Germany that eventually led to the downfall of Mussolini and the Fascist regime in Italy in World War II. On 10 June 1940, Italy declared war on Britain and France, which made Italian military forces in Libya
Italian Somaliland a chief supply base. In June 1936, after the war ended, Italian Somaliland became part of Italian East Africa ("Africa Orientale Italiana") forming the Somalia Governorate. The new colony of the Italian Empire also included Ethiopia and Eritrea. To commemorate the victory, an Arch of Triumph was constructed in Mogadishu. From 1936 to 1940, new roads were constructed in the region, such as the "Imperial Road" from Mogadishu to Addis Abeba. New railways (114 km from Mogadishu to Jowhar) and many schools, hospitals, ports and bridges were also built. Since the start of the colony, many Somali troops fought in