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Secret Files from World Wars to Cold War

Spanning four key twentieth-century conflicts, with a spotlight on the Second World War, Secret Files from World Wars to Cold War provides access to British government secret intelligence and foreign policy files from 1873 to 1953.


The material, sourced from The National Archives U.K., enables rich research into intelligence, foreign policy, international relations, and military history in the period of Appeasement, through the Second World War, and into the early Cold War. At the heart of this resource are the files of the Permanent Undersecretary’s Department (PUSD). The PUSD was the point of liaison between the Foreign Office and the British intelligence establishment, and these files document intelligence activities and their influence on foreign policy from 1873 to 1951, providing new insights into key moments of twentieth-century history.


All of the material was selected through consultation with the Editorial Board members. Key functionality of the resource includes fully OCR’d documents with browsing and filter options by: Series, Conflict, Theme, Time Period, Regions, Document Types, and Organisations.


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