The abandonment of Rome by the military high command, the head of government Badoglio, King Victor Emmanuel III and the king's son, Crown Prince Umberto, their move towards Pescara then Brindisi, and above all the proclamation's use of a format which did not give the clauses of the armistice in a clearly comprehensible form (which was largely wrongly interpreted as meaning a complete end to the war) all led to confusion. This was particularly so among the Italian armed forces on all fronts, who remained unaware of the armistice's precise content and disbanded themselves. Over 600,000 Italian soldiers were captured by the German army and sent to various prisoner of war camps under the designation I.M.I. ("internati militari italiani", or Italian military internees) in the weeks immediately after the announcement. More than half of all Italian soldiers laid down their arms and returned home (as referred to in the title of the 1960 film set at the time, "Tutti a casa"). The Italian and German high commands intercepted the Eisenhower broadcast first and so the Germans immediately put Operation Achse into effect to disarm their former allies and occupy the whole Italian peninsula, on 9 September sinking the Italian battleship "Roma", which had been ordered on the night of 8 September to sail with the entire Italian fleet to Malta in accordance with the armistice's clauses, under the cover-story of attacking the Allied forces landing at Salerno in Operation Baytown.