1511

File Title Government Code and Cypher School: Signals Intelligence Passed to the Prime Minister, Messages and Correspondence
Reference HW 1/1511
Date 25 March 1943
Government Department Government Code and Cypher School
File Accession Date 1993

Description

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 reports on North Africa: that the Axis is aware that the Allies have fore-knowledge of Axis intentions, on March 25; that the Axis realises that the times of attacks have been betrayed to the Allies, and that appropriate security measures are to be taken, on March 24.

Document Title Date
i Front Cover 25 March 1943 Download PDF (259 KB)
1st Government Code and Cypher School: Signals Intelligence Passed to the Prime Minister, Messages and Correspondence 25 March 1943 Download PDF (530 KB)
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