British and French troops cheering from the top of the German A7V tank named Elfriede, captured near Villers-Bretonneux. Near Saleux, 25 May 1918. Image courtesy Imperial War Museum © IWM (Q 65533). German submarine SM U-94 torpedoes the Norwegian cargo ship Saphir in the Atlantic Ocean 2.8 km off Trevose Head, Cornwall. The Saphir sinks; all the crew survive.