The
Oberkommando der Marine (OKM) was
Nazi Germany's Naval
High Command and the highest administrative and command authority of the
Kriegsmarine. It was officially formed from the
Marineleitung ("Naval Command") of the
Reichswehr on 11 January 1936. In 1937 it was combined with the newly formed
Seekriegsleitung (SKL). There were two major re-organisations, in November 1939 and May 1944.