According to historian Patrick Bernhard, Fascist Italian imperialism under Benito Mussolini, particularly in Africa, served as a model for the much more famous expansionism of Nazi Germany in Eastern Europe.
[1][2][3] After his appointment as Governor of the Dodecanese in 1936, the fascist leader Cesare Maria De Vecchi started to promote within Benito Mussolini's National Fascist Party an idea [4] of a new "Imperial Italy" (Italian: Italia imperiale), one that, like a recreation of the Roman Empire, went beyond Europe and included northern Africa (the Fourth Shore or "Quarta Sponda" in Italian).
Another fascist leader, Italo Balbo, promoted actively the development of Italian communities in coastal Libya, after the country was pacified from an Arab guerrilla war.
Settlement was directed by a state corporation, the "Libyan Colonization Society", which undertook land reclamation and the building of model villages and offered a grubstake and credit facilities to the settlers it had sponsored.
General Vittorio Ambrosio, the commander of the Italian Army during the conquest of Yugoslav Dalmatia, created a military line of occupation from Ljubljana to northern Montenegro that successively was to be considered as the future border of the "Imperial Italy" in the North-Western Balkans.
De Vecchi promoted the inclusion of Corfu (with a significant community of the Corfiot Italians), the Ionian islands and the southern Aegean islands (once controlled by the Republic of Venice), in order to form an "arch" that stretched toward the Dodecanese, Lesvos and Chios (Once controlled by the Republic of Genoa).
Finally, in 1947 the Italian Republic formally relinquished sovereignty over all its overseas colonial possessions as a result of the Treaty of Peace with Italy.