A file of reports, memoranda, and correspondence concerning British intelligence relations with foreign nations during the early stages of the Cold War. Subjects discussed in this file include the sharing of classified documents relating to the defence of Scandinavia with the Norwegian government; the preparation of a list of machinery and raw materials whose export to the Soviet Union was to be restricted; strategic planning for the defence of the British Empire and Commonwealth; the effect of the Nationality Act on British cypher personnel; restrictions on the publication of information about the British economy, to limit the flow of such information to the Soviets; security liaison with Pakistani intelligence officers in the United Kingdom; and a report on secret communications systems within Britain.