The historian Riederer argues that "Sonderunternehmen P" (Special Operation P), the codename for the attack on Scapa Flow, was very likely predominantly motivated by Nazi propaganda. Following World War I, the German High Seas Fleet was interned at Scapa Flow under the terms of the Armistice whilst negotiations took place over the fate of the ships. Fearing that all the ships would be seized and divided amongst the Allies, Admiral Ludwig von Reuter decided to scuttle the fleet. Whilst the internment was considered a national humiliation by the "Kriegsmarine", the scuttling of the fleet was being romanticized as an act ridding the navy of the shame associated with the Kiel mutiny of 3 November 1918. The NS-propaganda spread the interpretation that Prien's success at Scapa Flow turned the symbolic triumph of scuttling the fleet, and had finally rid the older generation from the Scapa Flow traumata.