Sinking of the RMS Lusitania significant "false flag" controversy left the ship; Cunard later explained that he was "tired and really ill." He was replaced with a new commander, Captain William Thomas Turner, who had previously commanded "Lusitania", "Mauretania", and "Aquitania" in the years before the war. On 17 April 1915, "Lusitania" left Liverpool on her 201st transatlantic voyage, arriving in New York on 24 April. A group of German–Americans, hoping to avoid controversy if "Lusitania" were attacked by a U-boat, discussed their concerns with a representative of the German Embassy. The embassy decided to warn passengers before her next crossing not to sail aboard
German submarine U-309 German submarine U-309 German submarine "U-309" was a Type VIIC U-boat of Nazi Germany's "Kriegsmarine" during World War II. The submarine was laid down on 24 January 1942 at the Flender Werke yard at Lübeck, launched on 5 December 1942, and commissioned on 27 January 1943 under the command of "Oberleutnant zur See" Hans-Gert Mahrholz. She sailed on nine combat patrols, but damaged only one ship, before being sunk off Scotland on 16 February 1945. German Type VIIC submarines were preceded by the shorter Type VIIB submarines. "U-309" had a displacement of when at the surface and while submerged. She