Key term for Edexcel GCSE History, used in Nazi Control and Dictatorship.
The intelligence-gathering arm of the SS, led by Reinhard Heydrich, which tracked enemies of the state and provided suspect lists to the Gestapo.
SD (Sicherheitsdienst) appears in Edexcel GCSE History revision content for Weimar and Nazi Germany, especially Nazi Control and Dictatorship and The Police State.
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