Document Title Government Code and Cypher School: Signals Intelligence Passed to the Prime Minister, Messages and Correspondence
Reference HW 1/379
Conflicts Second World War
Themes Military Intelligence and Operations
Regions Europe
Countries Germany, Norway
Document Type Signals Intelligence
Organisations Government Code and Cypher School
People Not Defined


A file of signals intelligence reports, messages, and correspondence issued by the Government Code and Cypher School and sent by the head ('C') of the Secret Intelligence Service (MI6) to the Prime Minister, Winston Churchill. This file includes the following messsages: from C to the Director of Naval Intelligence (DNI) reporting that large German Air Force (GAF) units were being sent to south-west Norway, on February 12; with a comment from the Prime Minister (PM) to the First Sea Lord (1SL).


German air force, aircraft, troop movements, military organisation, geographic intelligence, manpower

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