Siege of Saïo the Italian dictator, Benito Mussolini, proclaimed the colony of "Africa Orientale Italiana" (AOI, Italian East Africa), formed from Ethiopia (after the Italian victory in the Second Italo-Ethiopian War, fought 3 October 1935 – May 1936) and the existing Italian possessions of Italian Eritrea and Italian Somaliland. On 10 June 1940, Mussolini declared war on Britain and France, which made Italian military forces in Libya a threat to Egypt and those in Italian East Africa a danger to the British and French colonies in East Africa. Italian belligerence also closed the Mediterranean to Allied merchant ships and endangered British supply routes
Italian Empire also mentioned to Italo Balbo his ambitions of capturing British and French territories in the Cameroons and founding an "Italian Cameroon", in the hope that Italy could establish a colony on the Atlantic coast of Africa. On 10 June 1940, Mussolini declared war on Britain and France; both countries had been at war with Nazi Germany since September of the previous year. In July 1940, Italian foreign minister Count Ciano presented Hitler with a document of Italy's demands that included: the annexation of Corsica, Nice, and Malta; protectorates in Tunisia and a buffer zone in Algeria; independence with Italian military