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 by the Allies). The Germans also liberated Mussolini, who then formed the fascist Italian Social Republic, in the German-controlled areas. This led to the Italian Civil War.