HMAS Australia (1911) fighter—and operated them until the end of the war. The 2nd BCS again supported minelayers in the North Sea between 25–26 June and 29–30 July. During September and October, "Australia" and the 2nd BCS supervised and protected minelaying operations north of Orkney. When the armistice with Germany was signed on 11 November 1918 to end World War I, one of the conditions was that the German High Seas Fleet was to be interred at Scapa Flow. The German fleet crossed the North Sea, and on 21 November, the British Grand Fleet sailed out to meet it; "Australia" led the port
Romanian Black Sea Fleet during World War I sea-going gunboat "Grivița" and the Romanian Navy's sole proper minelayer, "Alexandru cel Bun". The Black Sea Fleet was neglected for a long-time by the Romanian Command. Its warships were all built between 1880 and 1888, while the Romanian Danube Flotilla was equipped with modern vessels built as late as 1908. The protected cruiser "Elsiabeta" was converted to an anti-aircraft cruiser after the start of the war, her four 120 mm main guns being landed and her four 75 mm secondary guns being modified for anti-aircraft fire. She was also armed with four machine guns and four 356 mm (12 inch)