The Triumph of HUMINT: The GDR foreign intelligence services’ collection of defense intelligence, 1951–1989

During the Cold War, the German Democratic Republic (GDR)’s foreign intelligence agencies collected much defense intelligence from human sources in West Germany. By the mid-1960s, the two services had created agent networks in their principal targets in West Germany’s government, armed forces, industry and universities. For the next 25 years, these agent networks supplied a wealth of varied and valuable military intelligence and scientific and technological intelligence. At their heart was a small number of outstanding human sources. The GDR’s intelligence agencies significantly strengthened the Soviet Bloc’s intelligence collection. The intelligence they obtained was more valuable to the Warsaw Pact than the GDR’s armed forces and would have been of great benefit to the Pact if war had broken out. Their success ran counter to the trend of military intelligence collection at that time, which was to rely increasingly heavily on technical collection.