Document Title Government Code and Cypher School: Signals Intelligence Passed to the Prime Minister, Messages and Correspondence
Reference HW 1/1481
Conflicts Second World War
Themes Military Intelligence and Operations, Signals Intelligence and Code-breaking, Foreign Policy and International Relations
Regions Europe, South Asia
Countries Afghanistan, India
Document Type Signals Intelligence, Memoranda
Organisations Government Code and Cypher School, Security Service
People Josef Stalin


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 correspondence: a minute from C to the Prime Minister (PM) countering the PM's suggestion that certain Japanese diplomatic reports should be sent to Stalin; and from the German Legation in Kabul, a report of February 16 from the German Ministry of Foreign Affairs in Berlin to Kabul containing details of a planned operation involving the dropping of German agents of Russian extraction into Soviet Central Asia.


security, information sharing, Anglo-Soviet relations, leakage of information, communications interception, codes, cyphers, Pacific War, special operations, German airborne troops, Eastern Front, sabotage

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