 With very little preparation after this disaster in Africa and the ensuing retirement of Rodolfo Graziani, Mussolini then decided on an invasion of Greece as his next move to keep in pace with Germany's recent occupation of Romania.After large propaganda campaigns and even the sinking of a Greek light cruiser, Mussolini then handed an ultimatum to Ioannis Metaxas, Prime Minister of Greece, which would initiate the Greco-Italian War.Hitler was against Mussolini's invasion (as it would require German troops' help later on), but Mussolini continued without German knowledge, as he felt that the Nazis had invaded countries too many times without telling Mussolini beforehand.