File Title Government Code and Cypher School: Signals Intelligence Passed to the Prime Minister, Messages and Correspondence
Reference HW 1/3645
Date 28 March 1945
Government Department Government Code and Cypher School
File Accession Date 1993


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 Prime Minister (PM); and the following reports on Europe: of an assessment from Fieldmarshal Model for March 27, on the premature deployment by the U.S. 1st Army of three armoured divisions for a break-through from the Remagen bridgehead, with German commanders of independent formations and of Volksturm battalions in the rear area given the task of combatting the armoured attack; of German Air Force (GAF) attacks on Allied forces in an area 25 miles north of Wuerzburg; and a strength and weapons return from the SS Panzer Grenadier Training Battalion which has been ordered to the 19th Army for employment in Miltenberg; Naval Headlines, covering operations by small battle units; that the Danzig-Gdansk dockyards are no longer tenable, and all U-boats and associated vessels are to leave, with the Captain of U-boats to transfer to Kiel; danger in the waters off Norway from Allied aircraft carriers; that the total heavy diesel oil stocks for E-boats in Pola are down to 11.2 cubic metres, on March 21; that all fuel in Fiume had been consumed by March 23; that the Japanese No. 1 Diversion Attack Force is to leave Kure for Sasebo, on March 28; cryptographic material on Okinawa being destroyed, with Allied surface forces carrying out operations in the Sakashima and Okinawa areas; and the Japanese Special Attack Arm being ordered by the Chief of Staff of the Combined Fleet to seek out targets of opportunity; from the Japanese minister in Stockholm, an agent's report of the U.K. and U.S. being critical of the Soviet Union's attitude to the Romanian and Polish questions at the Crimea Conference, and concerned over the implementation of agreements, and the progress of the war in Europe, on March 17; and on German propaganda directives, on March 22; and from the French ambassador in Moscow, on Czech negotiations with the Soviet Union, on March 23.

Document Title Date
i Front Cover 28 March 1945 Download PDF (418 KB)
1st Government Code and Cypher School: Signals Intelligence Passed to the Prime Minister, Messages and Correspondence 28 March 1945 Download PDF (3.50 MB)
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