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The documents from MI5 have been made public by the National Archives. They detail the investigations into the group that plagued Britain’s secret service for decades.Their story has shocked and ...
Fifth Column was the name MI5, the British Security Service, gave to a World War II operation run from 1942 until at least 1947.It was initially intended to identify people who would be willing to assist Germany in the event of an invasion of the United Kingdom, but as it developed, it also acted to divert its targets away from harmful activities.
MI5 (Military Intelligence, Section 5), [2] officially the Security Service, is the United Kingdom's domestic counter-intelligence and security agency and is part of its intelligence machinery alongside the Secret Intelligence Service (MI6), Government Communications Headquarters (GCHQ), and Defence Intelligence (DI).
The decryption of the Zimmermann Telegram was described as the most significant intelligence triumph for Britain during World War I, [1] and one of the earliest occasions on which a piece of signals intelligence influenced world events. [2] The Imperial War Cabinet was the British Empire's wartime coordinating body.
Britain's top domestic spymaster cautioned the population on Wednesday to treat the threat of spying from Russia and China as vigilantly as terrorism, warning that foreign spies were seeking to ...
Security Intelligence Middle East (SIME) (1912–1946) was an organisation made up of a number of British intelligence agencies supporting the British Military Government during the Second World War, based in Cairo, Egypt. It was composed of Security Service (MI5), with Secret Intelligence Service (MI6) provided by liaison officers and army ...
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Official Historian of the Security Service (MI5) Christopher Maurice Andrew , FRHistS (born 23 July 1941) is an Emeritus Professor of Modern and Contemporary History at the University of Cambridge with an interest in international relations and in particular the history of intelligence services.