Document Title Government Code and Cypher School: Signals Intelligence Passed to the Prime Minister, Messages and Correspondence
Reference HW 1/400
Conflicts Second World War
Themes Military Intelligence and Operations
Regions Africa, East Asia
Countries Kenya, Malaya
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 report: a Naval Headlines report of March 10 on German activity and the Tirpitz's return to port, and Italian activity.


naval intelligence, German navy, warships, aircraft, torpedo boats, German air force, submarines, military operations, Royal Navy, aerial reconnaissance, German U-boats, Italian navy

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