Document Title Government Code and Cypher School: Signals Intelligence Passed to the Prime Minister, Messages and Correspondence
Reference HW 1/3102
Conflicts Second World War
Themes Weapons Technology and Nuclear Warfare
Regions Europe
Countries Great Britain
Document Type Signals Intelligence, Memoranda
Organisations Foreign Office, 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 contains a message from C to the Assistant Chief of Air Staff Intelligence (ACASI) with the Prime Minister's (PM's) note on BJ133815 (see 7241); and the ACASI's and the Chief of the Air Staff's (CAS's) comments on new German jet aircraft (see also 7200).


diplomatic intelligence, rumours, German war effort, weapons development, jet aircraft, German air force, German U-boats, technology

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