Document Title Government Code and Cypher School: Signals Intelligence Passed to the Prime Minister, Messages and Correspondence
Reference HW 1/171
Conflicts Second World War
Themes Military Intelligence and Operations
Regions Africa, Europe, Mediterranean, Middle East
Countries Egypt, Germany, Greece, Italy, Malta
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 on the Moscow Front: indications of a unit moving on October 25; on the Russian Front: the German Air Force (GAF) Fliegerkorps is to move; on the Moscow Front: a 12th Flak Division situation report for October 26; on North Africa: the GAF report that a cruiser was sunk; on North Africa: the GAF are seeking sigint information on the landing grounds used by British night bombers; on the Mediterranean: GAF opinions on an Italian report of a Spitfire shot down over Malta; and the Anti-Aircraft (AA) Group at Narvik is to be disbanded.


troop movements, German army, military situation reports, Operation Barbarossa, Red Army, encirclement, aerial attacks on ships, German air force, Royal Navy, shipping losses, intelligence requirements, Royal Air Force, aircraft, military organisation, anti-aircraft defence, invasion of the Soviet Union

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