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
Foreign relations of Vichy France their own colony, Empire of Vietnam, as a double puppet state. During the Italian invasion and occupation of Ethiopia in the mid-1930s and during the early stages of World War II, constant border skirmishes occurred between the forces in French Somaliland and the forces in Italian East Africa. After the fall of France in 1940, French Somaliland declared loyalty to the Vichy France. The colony remained such during the East African Campaign but stayed out of that conflict. This lasted until December 1942. By that time, the Italians had been defeated and the French colony was isolated by a British