 Australia rejoined the 2nd BCS on 9 June 1916 as the squadron flagship , but there was little significant naval activity for the Indefatigables , other than routine patrolling , thanks to the Kaiser 's order that his ships should not be allowed to go to sea unless assured of victory . Australia collided with Repulse on 12 December 1917 and was under repair through the following month . She was present at the internment of the High Seas fleet at Scapa Flow on 21 November 1918 . New Zealand was refitted between December 1918 and February 1919 for Admiral Jellicoe 's year @-@ long tour of India and the Dominions and she was paid off upon her return on 15 March 1920 into reserve . She was sold for scrap on 19 December 1922 . Australia sailed for Australia on 23 April 1921 and became flagship of the Royal Australian Navy upon her arrival . Pursuant to the terms of the Washington Naval Treaty she was scuttled east of Sydney on 12 April 1924 . 
