Document Title Government Code and Cypher School: Signals Intelligence Passed to the Prime Minister, Messages and Correspondence
Reference HW 1/3637
Conflicts Second World War
Themes Military Intelligence and Operations
Regions Atlantic, East Asia, Europe, Mediterranean
Countries Germany, Gibraltar, Holland, Ireland, Italy, Netherlands, Norway, Singapore
Document Type Signals Intelligence
Organisations Government Code and Cypher School
People Karl Dönitz, Adolf Hitler


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 Western Europe: that the Commander in Chief (C-in-C) West points out that the Ersatz and training units to be brought up comprise recruits of short training, on March 24; that the C-in-C West orders that the situation in the area from Frankfurt - Mainz - Darmstadt and to the south-east demanded immediate counter-measures, on March 24; and a German Air Force (GAF) operations report, for March 25; on Southern Europe: of a protest by the C-in-C for the South-west against the proposed withdrawal of two flak units from Italy, on March 21; and that all railway frontier crossings from Italy to the north were impassable on March 21; and Naval Headlines for March 23, 24, 25 and 26.


military situation reports, Western Front, counter-attacks, German strategy, German army, troop movements, aerial attacks, German air force, German withdrawal, anti-aircraft defence, Italian Campaign, communications disruption, railways, naval intelligence, German U-boats, naval warfare, Battle of the Atlantic, air raids, naval bases, shipping losses, Allied strategy, amphibious operations, Pacific War, Japanese navy, submarines, convoys

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