Document Title Government Code and Cypher School: Signals Intelligence Passed to the Prime Minister, Messages and Correspondence
Reference HW 1/159
Conflicts Second World War
Themes Military Intelligence and Operations
Regions Africa, East Asia, Europe, Mediterranean, Middle East
Countries China, Crete, Egypt, Finland, Germany, Gibraltar, Great Britain, Greece, Holland, Italy, Japan, Netherlands, Russia
Document Type Signals Intelligence
Organisations Government Code and Cypher School, Security Service
People Edward Bridges, Adolf Hitler, Joachim von Ribbentrop


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 1st Panzer Army evening report, from October 20, of slow progress in the face of determined Soviet resistance in the Krinka, Stalino, and Taganrog areas; an 11th Air Corps signal from October 12 on the intention to withdraw the 7th Air Division from the Leningrad sector; that on October 20 the Panzer Army is attacking Rostov; a signal from October 9 that a long-range bomber unit is moving from Finland to Holland; and the Naval Headlines, covering U-boat activities in the Atlantic, off Gibraltar and in the Mediterranean; reports of various Italian convoys in the Mediterranean; and an Italian Y service report on the RN fleet in Alexandria. This file also includes an appreciation of the war in Europe and the implications for Japan from the Japanese ambassador in Berlin, from October 11; a report on Spain summarising their internal situation by the Turkish minister in Madrid, from October 18; and a report that Spanish ships are being used for transporting German Air Force (GAF) cargoes from Brindisi to [Greece], from October 18.


Operation Barbarossa, German army, military situation reports, Red Army, defence, military dispositions, German airborne troops, Soviet air force, adverse weather conditions, German air force, troop movements, naval intelligence, German U-boats, Battle of the Atlantic, Italian navy, convoys, diplomatic intelligence, politics, transportation, military supplies, invasion of the Soviet Union

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