This book presents an overview about the activities of intelligence services and their role during the Cold War period. Contributions from a wide range of disciplines - by historians, political scientists, journalists, legal experts, former officers of secret services, and former military men from various countries around the world - discuss the services in the US, Germany, Korea, the Caribbean Sea, the Baltic, Russia, and Europe, including the famous US counter-intelligence Venona project. (Series: Politics and Modern History / Politik und Moderne Geschichte - Vol. 18)