On 17 June 1936 all police forces throughout Germany were united, following Adolf Hitler's appointment of Heinrich Himmler as Chief of German Police. Himmler immediately reorganised the police into two groups: the Ordnungspolizei (Order Police; Orpo), consisting of both the national uniformed police and the municipal police, and the Sicherheitspolizei (Security Police; SiPo), consisting of the Kripo and Gestapo.[1] Reinhard Heydrich was appointed chief of the SiPo and was already head of the party Sicherheitsdienst (Security Service; SD) and the Gestapo.[2][3]