Document Title Government Code and Cypher School: Signals Intelligence Passed to the Prime Minister, Messages and Correspondence
Reference HW 1/361
Conflicts Second World War
Themes Military Intelligence and Operations
Regions Africa, Europe, Middle East
Countries Italy
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 message: to the Assistant Chief of Air Staff Intelligence (ACASI) for the Chief of the Air Staff (CAS) from C, including a note from the Prime Minister (PM) and a response from the CAS to a German report of a Panzer group attack which took the British by surprise and without air support, on January 21.


military operations, military situation reports, Royal Air Force, aircraft, airfields, tanks, German army, counter-attacks, surprise attacks, air warfare, air raids

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