1482

File Title Government Code and Cypher School: Signals Intelligence Passed to the Prime Minister, Messages and Correspondence
Reference HW 1/1482
Date 19 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 correspondence: a minute from C to the Prime Minister (PM) on sigint success against German U-boat communications on March 16-18, noting that the codeword SHARK is to be used in future for such successes. This file also includes the following reports on North Africa: the Tunis Air Corps' reconnaissance reports for March 20 including the sighting of the movement of up to 1200 Allied vehicles heading north to the south-west of Soltane and 40 Allied aircraft on Thelepte airfield; of combat plans for the Tunis Air Corps for the night of March 20/21; and also for March 21.

Document Title Date
i Front Cover 19 March 1943 Download PDF (457 KB)
1st Government Code and Cypher School: Signals Intelligence Passed to the Prime Minister, Messages and Correspondence 19 March 1943 Download PDF (3.04 MB)
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