Document Title Government Code and Cypher School: Signals Intelligence Passed to the Prime Minister, Messages and Correspondence
Reference HW 1/3785
Conflicts Second World War
Themes Foreign Policy and International Relations, Military Intelligence and Operations
Regions East Asia, Europe, Middle East, Pacific, South Asia
Countries Afghanistan, China, Czechoslovakia, Germany, Great Britain, India, Iraq, Japan, Korea, Mongolia, Persia, Poland, Portugal, Singapore, Soviet Union, Spain, Switzerland, Syria, Turkey
Document Type Signals Intelligence
Organisations Government Code and Cypher School, Security Service
People Edward Bridges


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: from the Japanese Minister for Foreign Affairs to the ambassador in Moscow, that he seeks Soviet good offices to obtain peace without an unconditional surrender, on July 21; from the Japanese minister in Stockholm, on the Potsdam Conference and Sino-Soviet talks in Moscow, on July 19; from the Portuguese minister in Stockholm, describing Soviet relations with Portugal, as of July 22; from the Turkish ambassador in Moscow, on conversations with Molotov, and that the Soviets continue to seek Turkish territory, on July 10; and a Naval Headlines report.


Japanese government, surrender, armistice, Pacific War, Potsdam Conference, Allied powers, Allied strategy, Soviet foreign policy, naval intelligence, aerial attacks, naval bases, Japanese navy, warships, bombing, Japanese air force

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