21. All Naval and Mercantile Marine prisoners of war of the Allied and Associated Powers in German hands to be returned, without reciprocity. 22. To surrender at the ports specified by the Allies and the United States all submarines at present in existence (including all submarine cruisers and minelayers), with armament and equipment complete. Those that cannot put to sea shall be deprived of armament and equipment, and shall remain under the supervision of the Allies and the United States. Submarines ready to put to sea shall be prepared to leave German ports immediately on receipt of wireless order to sail to the port of surrender, the remainder to follow as early as possible. The conditions of this Article shall be completed within fourteen days of the signing of the Armistice. 23. The following German surface warships, which shall be designated by the Allies and the United States of America, shall forthwith be disarmed and thereafter interned in neutral ports, or, failing them, Allied ports, to be designated by the Allies and the United States of America, and placed under the surveillance of the Allies and the United States of America, only care and maintenance parties being left on board, namely: 6 battle cruisers. 10 battleships. 8 light cruisers, including two minelayers. 50 destroyers of the most modern type. All other surface warships (including river craft) are to be concentrated in German naval bases, to be designated by the Allies and the United States of America, completely disarmed and placed under the supervision of the Allies and the United States of America. All vessels of the Auxiliary Fleet are to be disarmed. All vessels specified for internment shall be ready to leave German ports seven days after the signing of the Armistice. Directions for the voyage shall be given by wireless. * * * * * _Note._--A declaration has been signed by the Allied delegates and handed to the German delegates to the effect that, in the event of ships not being handed over owing to the mutinous state of the Fleet, the Allies reserve the right to occupy Heligoland as an advanced base to enable them to enforce the terms of the Armistice. The German delegates have on their part signed a declaration that they will recommend the Chancellor to accept this. 24. The Allies and the United States of America shall have the right to sweep up all minefields and destroy all obstructions laid by Germany outside German territorial waters, and the positions of these are to be indicated.