RMS Lusitania RMS Lusitania RMS "Lusitania" was a British ocean liner and briefly the world's largest passenger ship. The ship was sunk on 7 May 1915 by a German U-boat off the southern coast of Ireland. The sinking presaged the United States declaration of war on Germany in 1917. The ship was a holder of the Blue Riband appellation for the fastest Atlantic crossing and was briefly the world's largest passenger ship until the completion of her sister ship . The Cunard Line launched "Lusitania" in 1906, at a time of fierce competition for the North Atlantic trade. She sank on her
German submarine U-764 the war. In eight patrols she sank one merchant ship, for a total of , and 2 warships sunk (1,696 tons). "U-764" took part in eight wolfpacks, namely "U-764" surrendered on 14 May 1945 at Loch Eriboll, Scotland. She was sunk as a target in position as part of Operation Deadlight on 2 February 1946. German submarine U-764 German submarine "U-764" was a Type VIIC U-boat built for Nazi Germany's "Kriegsmarine" for service during World War II. She was laid down on 1 February 1941 by Kriegsmarinewerft Wilhelmshaven as yard number 147, launched on 13 March 1943 and commissioned on