British Intelligence In The Second World War

Volume 5 of the Official History of Intelligence in the Second World War, Strategic Deception, brings the series to an end. Strategic deception depends for its success on the availability of good security and good intelligence. The first three volumes of the series described the intelligence channels that gave the Allies their incomparable insight into enemy capabilities and intentions.

The field of British intelligence has always been shrouded in mystery, existing in the imagination as a shadowy world of secret agents. The highly acclaimed British Intelligence in the Second World War, originally published in five volumes, provided the first reliable and comprehensive account of intelligence at work.

The first three volumes of the series dealt with the influence of intelligence on strategy and operations. Volume 4 analyzes the contribution made by intelligence to the work of the authorities responsible for countering the threats of subversion, sabotage and intelligence gathering by the enemy in the United Kingdom and British territories overseas, and neutral countries. It describes the evolution of the security intelligence agencies between the wars and the security situation in September 1939. This volume reviews the arguments about security policy regarding enemy aliens, Fascists and Communists in the winter of 1939-1940 and during the Fifth Column panic in the summer of 1940. It describes how the security system, still at that time inadequately organized and poorly informed, was developed into an efficient machine and how, with invaluable help from signals intelligence and other sources and by the skillful use of double agents, the operation of the enemy intelligence services were effectively countered. In conclusion, it notes the consistent subservience of the Communist Party to the interests of the USSR and the likely threat to British security.

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Startling new revelations about collaboration between the Allies and the German Secret Service. Based on extensive primary source research, John Bryden’s Fighting to Lose presents compelling evidence that the German intelligence service — the Abwehr — undertook to rescue Britain from certain defeat in 1941. Recently opened secret intelligence files indicate that the famed British double-cross or double-agent system was in fact a German triple-cross system. These files also reveal that British intelligence secretly appealed to the Abwehr for help during the war, and that the Abwehr’s chief, Admiral Canaris, responded by providing Churchill with the ammunition needed in order to persuade Roosevelt to lure the Japanese into attacking Pearl Harbor. These findings and others like them make John Bryden’s Fighting to Lose one of the most fascinating books about World War II to be published for many years.

In the years immediately following World War II, information was disclosed about what has been termed the shadow war of the existence of hitherto secret agencies. In Germany it was the Abwehr and the Sicherheitsdienst; in Britain it was MI5, the Secret Intelligence Service (MI6) and Special Operations Executive (SOE); in the United States it was the Office of Strategic Services (OSS) and the Special Intelligence Service (SIS) of the Federal Bureau of Investigation (FBI); in Japan it was the Kempet'ai; and in Italy the Servicio di Informazione Militare (SIM). Sixty years after World War II secrets are still being revealed about the covert activities that took place. Many countries had secret agencies maintaining covert operations, but even ostensibly neutral countries also conducted secret operations. Changes in American, British, and even Soviet official attitudes to declassification in the 1980s allowed thousands of secret documents to be made available for public examination, and the result was extensive revisionism of the conventional histories of the conflict, which previously had excluded references to secret intelligence sources. The Historical Dictionary of World War II Intelligence tells the emerging history of the intelligence world during World War II. This is done through a chronology, an introduction, a bibliography, and hundreds of cross-referenced dictionary entries on the secret agencies, operations, and events. The world of double agents, spies, and moles during WWII is explained in the most comprehensive reference currently available.