Operations on the Northern front, East Africa, 1940 in the Second World War, were conducted by the British in Sudan and the Armed Forces Command of Italian East Africa (Comando Forze Armate dell'Africa Orientale Italiana) in Eritrea and Ethiopia. On 1 June 1940, Amedeo, Duke of Aosta the Viceroy and Governor-General of the Africa Orientale Italiana (AOI, Italian East Africa), commander in chief of the Armed Forces Command of the Royal Italian Army (Regio Esercito) and General of the Air Force (Generale d'Armata Aerea), had about 290,476 local and metropolitan troops (including naval and air force personnel) and by 1 August, mobilisation had increased the number to 371,053 troops. General Archibald Wavell, General Officer Commanding-in-Chief (GOC-in-C) of Middle East Command, had about 86,0