of Ethiopia" by 5 May 1936. Some Ethiopians welcomed the Italians and collaborated with them in the government of the newly created Italian Empire, like Ras Seyoum Mengesha, Ras Getachew Abate and Ras Kebbede Guebret. In 1937 the friendship of Seyoum Mengesha with the Italian Viceroy Prince Amedeo, Duke of Aosta enabled this Ras to play an influential role in securing the release of 3,000 Ethiopian POWs being held in Italian Somaliland. The Italian victory in the war coincided with the zenith of the international popularity of 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. Italian East Africa was formed on 1 June 1936, shortly after the conquest, by merging the pre-existing colonies of Italian Somaliland and Italian Eritrea with the newly conquered territory. The maintenance and creation of Ethiopian colonies was very costly. Second World War and dissolution On 10 June 1940, Italy declared war on Britain and France, which made Italian military forces in Libya a threat to Egypt and those in the Italian East Africa a danger to the British and French territories in the Horn of Africa. Italian belligerence also closed the Mediterranean to Allied merchant ships and endangered British supply routes along the coast of East Africa, the Gulf of Aden, Red Sea and the Suez Canal. (The Kingdom of Egypt remained neutral during World War II, but the Anglo-Egyptian Treaty of 1936 allowed the British to occupy Egypt and Anglo-Egyptian Sudan.) Egypt, the Suez Canal, French Somaliland and British Somaliland were also vulnerable to invasion, but the Comando Supremo (Italian General Staff) had planned for a war after 1942. In the summer of 1940, Italy was far from ready for a long war or for the occupation of large areas of Africa. Hostilities began on 13 June 1940, with an Italian air raid on the base of 1 Squadron Southern Rhodesian Air Force (237 (Rhodesia) Squadron RAF) at Wajir in the East Africa Protectorate (Kenya). In August 1940, the protectorate of British Somaliland was occupied by Italian forces and absorbed into Italian East Africa. This occupation lasted around six months. By early 1941, Italian forces had been largely pushed back from Kenya