Document Title Government Code and Cypher School: Signals Intelligence Passed to the Prime Minister, Messages and Correspondence
Reference HW 1/202
Conflicts Second World War
Themes Military Intelligence and Operations
Regions Africa, Europe, Mediterranean
Countries Gibraltar, Italy, Libya, Malta, Spain
Document Type Signals Intelligence
Organisations 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 includes the following reports: a convoy including the Biene, San Marco and Pisani is reported to have left Naples on November 7; a German Air Force (GAF) fighter unit was transferred from Catania to Misurata on November 9; of improved anti-aircraft defences for GAF airfields in Libya on November 8; an Italian report that a convoy was attacked by the Royal Navy on November 9, with all merchant ships on fire and the destroyer Fulmine sunk; an Italian air reconnaissance report for November 6-7 in Cyrenaica and a night photo reconnaissance of Malta for November 7-8; the disbanding of the German motor transport Purchasing Commission in North Africa on November 8; and the Naval Headlines, covering U-boats off Spain being redirected to seek a convoy expected from Freetown; and a war order to U-boats issued on November 9 regarding action to be taken in response to aggressive action by U.S. warships.


convoys, troop movements, German air force, anti-aircraft defence, airfields, Royal Navy, naval warfare, shipping losses, aerial reconnaissance, naval intelligence, German U-boats, Battle of the Atlantic, Italian navy, supply problems, fuel

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