The
Gehlen Organisation was pivotal in supplying the West with intelligence on
Warsaw Pact nations. The organization infiltrated these countries and tried to foment uprisings against Soviet control, while supporting other groups opposed to Soviet rule. The CIA worked closely with the Gehlen group: the
Gehlen Organisation supplied the manpower while the CIA supplied the material needs of the clandestine operations, such as money and airplanes.
A successful mission was
Operation Sunrise which infiltrated some 5,000 anti-communists of Eastern European and Russian ancestry . These agents were given espionage training at a camp named Oberammergau. Another mission by the Gehlen Organisation was "Operation Rusty" that carried out counter-espionage activities directed against dissident German organizations in Europe.
The mission of the
Gehlen Organisation was severely compromised by communist moles within the organization itself and within the CIA and the British
MI5, particularly
Harold "Kim" Philby. The
WIN mission to Poland was a complete failure due to the compromising of the mission by counter-spies; as it turned out, the so-called Fifth Command of WIN organization within Poland had been created by the Soviet intelligence services in the first place .
Despite these setbacks, the
Gehlen Organisation was successful in discovering the secret Soviet assassination unit known as
SMERSH. They also assisted in the successful
Berlin Tunnel which was constructed under the
Berlin Wall to monitor East German and Soviet electronic communications .
The
Gehlen Organisation employed hundreds of
ex-Nazis, among them
Alois Brunner, who was responsible for the
Drancy internment camp near Paris, is responsible for the death of 140,000 Jews, and is believed to be still alive as of 2007 ; the CIA turned a blind eye, and indeed actively participated in some cases, because of the exigencies of the Cold War. According to Robert Wolfe, historian at the
US National Archives, "US army intelligence accepted Reinhard Gehlen's offer to furnish alleged expertise on the Red Army — and was bilked by the many mass murderers he hired."