catch up. After the German army defeated Poland, Denmark, Norway, the Netherlands, Belgium, Luxembourg and France, Mussolini decided to use Albania as a springboard to invade Greece. The Italians launched their attack on October 28, 1940, and at a meeting of the two fascist dictators in Florence, Mussolini stunned Hitler with his announcement of the Italian invasion. Mussolini counted on a quick victory, but the Greek army halted the Italian one in its tracks and soon advanced into Albania. The Greeks took Korçë and Gjirokastër, and threatened to drive the Italians from the port city of Vlorë. Albanian fear of renewed Greek designs on their country prevented effective co-operation with the Greek forces, and Mussolini's forces soon established a stable front in central Albania. Fearful that the Balkans might become the Achilles heel of her domination of Europe, on April 6, 1941, Germany intervened to crush both Greece and Yugoslavia, and a month later the Axis added Kosovo to Italian-ruled Albania. Thus Albanian nationalists ironically witnessed the realization of their dreams of uniting most of the Albanian-populated lands during the Axis occupation of their country. With the Axis invasion of Yugoslavia and the Balkans, Italy annexed Ljubljana, Dalmatia and Montenegro, and established the puppet states of Croatia and the Hellenic State. After the invasion of the Soviet Union failed (1941–42), and the United States entered the war (December 1941), the situation for the Axis started to deteriorate. In May 1943 the Anglo-Americans completely defeated the Italians and the Germans in North Africa, and in July they landed in Sicily. King Victor Emmanuel III reacted by arresting Mussolini and appointing the army chief of staff, Marshal Badoglio, as Prime Minister. The new government officially continued the war against the Allies, but started secret negotiations with them. Hitler did not trust Badoglio, and moved a large German force into Italy, on the pretext of fighting the Allied invasion. On September 8, 1943 the Badoglio government announced an armistice with the Allies, but did not declare war on Germany, leaving the army without instructions. Badoglio and the royal family fled to the Allied-controlled regions. In the ensuing confusion, most of the Italian army scattered (with some notable exceptions with the Decima MAS in La Spezia, around Rome and in places such as the Greek island of Cefalonia), and the Germans quickly occupied all of central and northern Italy (the south was already controlled