Italy then signed an armistice in Cassabile, ending its war with the Allies. However, Mussolini's reign in Italy was not over as a German commando unit, led by Otto Skorzeny, rescued Mussolini from the mountain hotel where he was being held under arrest. Hitler instructed Mussolini to establish the Italian Social Republic, a German puppet state in the portion of northern and central Italy held by the Wehrmacht. As result, the country descended into civil war; the new Royalist government of Victor Emmanuel III and Marshal Badoglio raised an Italian Co-belligerent Army, Navy and Air Force, which fought alongside the Allies for the rest of the war, while other Italian troops, loyal to Mussolini and his new Fascist state, continued to fight alongside the Germans in the National Republican Army. Also, a large anti-fascist Italian resistance movement fought a guerrilla war against the German and RSI forces.