German Battleship SMS Posen

SMS Posen was one of four battleships in the Nassau class, the first dreadnoughts built for the German Imperial Navy (Kaiserliche Marine). The ship was laid down at the Germaniawerft shipyard in Kiel on 11 June 1907, launched on 12 December 1908, and commissioned into the High Seas Fleet on 31 May 1910. She was equipped with a main battery of twelve 28 cm (11 in) guns in six twin turrets in an unusual hexagonal arrangement.

The ship served with her three sister ships Nassau, Rheinland, and Westfalen for the majority of World War I. She saw extensive service in the North Sea, where she took part in several fleet sorties. These culminated in the Battle of Jutland on 31 May – 1 June 1916, where Posen was heavily engaged in night-fighting against British light forces. In the confusion, the ship accidentally rammed the light cruiser SMS Elbing, which suffered serious damage and was scuttled later in the night.

The ship also conducted several deployments to the Baltic Sea against the Russian Navy. In the first of these, Posen supported a German naval assault in the Battle of the Gulf of Riga. The ship was sent back to the Baltic in 1918 to support the White Finns in the Finnish Civil War. At the end of the war, Posen remained in Germany while the majority of the fleet was interned in Scapa Flow. In 1919, following the scuttling of the German fleet in Scapa Flow, she was ceded to the British as a replacement for the ships that had been sunk. She was then sent to ship-breakers in the Netherlands and scrapped in 1922.