RMS Mauretania (1906) and were requested by the British government to become armed merchant cruisers, but their huge size and massive fuel consumption made them unsuitable for the duty, and they resumed their civilian service on 11 August. Later, due to lack of passengers crossing the Atlantic, "Mauretania" was laid up in Liverpool until May 1915 at the time that "Lusitania" was sunk by a German U-boat. "Mauretania" was about to fill the void left by "Lusitania", but she was ordered by the British government to serve as a troop ship to carry British soldiers during the Gallipoli Campaign. She avoided becoming prey
German submarine U-868 was then transferred to Loch Ryan 30 May 1945 for Operation Deadlight, where a large number of U-boats were sunk in one operation. German submarine U-868 U-868 was a Type IXC/40 U-boat of Nazi Germany's "Kriegsmarine" in the Second World War. The ship was ordered on 25 August 1941 and laid down on 11 March 1943. She was launched on 18 August 1943, at Bremen, Germany. She had two commanders over her operational lifespan, for the period from 23 December 1943 until 21 July 1944 it was "Kapitänleutnant" Dietrich Rauch, then "Oberleutnant zur See" Eduard Turre for the period from