HMS Wolsey number became G40 in June 1918; it was changed to D98 during the interwar period. Upon completion, "Wolsey" was assigned to the Grand Fleet, based at Scapa Flow in the Orkney Islands, in which she served for the rest of World War I. After the conclusion of World War I, "Wolsey" served in the Atlantic Fleet. In the late 1920s, she operated on the China Station. After the British river steamer SS "Kutwo" collided with and sank a Chinese troop-carrying launch on the Yangtze River and Chinese authorities threatened to seize her at Nanking in early March 1927, "Wolsey" arrived
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)