Sicherheitsdienst

Eventually to contain all Nazi foreign human-source intelligence and counterintelligence activities of Nazi Germany, the Sicherheitsdienst, best known as the SD, was created as a Nazi Party, not state, organization in 1939. It was originally divided into internal and domestic intelligence services, headed, respectively, by Otto Ohlendorf and Walter Schellenberger. When the overall RSHA security organizations were formed in 1942, became, respectively, Amt (office) III and Amt VI.