The SD

What was the SD?

The Sicherheitsdienst des Reichsführers-SS (SD), or Security Service of the Reichsführer-SS, was the Nazi Party's intelligence and security service.

What was the role of the SD security service?

The SD spied on Nazi opposition, both in Germany and other countries.

Who was the leader of the SD security service?

It was set up in 1931, by Heinrich Himmler, who appointed Reinhard Heydrich as leader in 1939.