Passage: The experience at Jutland convinced Scheer that the pre-dreadnoughts of II Squadron could no longer be used as front-line battleships. Accordingly, they were detached from the High Seas Fleet and returned to guard duty in the Elbe. Now-KAdm Dalwigk zu Lichtenfels hauled down his flag on 30 November and a replacement was not appointed, though II Squadron remained in at least administrative existence until 15 August 1917. In the meantime, Hannover went to Kiel for maintenance on 4 November 1916 before resuming guard ship duties in the Elbe. From 10 February to 23 April 1917, she served as the flagship for VAdm Hubert von Rebeur-Paschwitz. During this period, on 21 March, the ship had some of her guns removed. From 25 June to 16 September, she was rebuilt to serve as a guard ship in the Danish straits; she began serving in this role on 27 September, replacing the battleship Lothringen.Acts of insubordination began aboard the ship on 4 November 1918, as a wider mutiny aboard the High Seas Fleet spread from Wilhelmshaven to Kiel. On 11 November, Germany entered into the armistice with the Western Allies. According to the terms of the armistice, the most modern components of Germany's surface fleet were interned in the British naval base at Scapa Flow, while the rest of the fleet was demilitarized. On the day the armistice took effect, Hannover was sent briefly to Swinemünde, before returning to Kiel on 14–15 November along with Schlesien. Hannover was decommissioned a month later on 17 December in accordance with the terms of the armistice.

Question: What happened to the German armies older fleet?
interned