First World War spooks

A century ago, the War Office created a shadowy organisation whose remit was to snare enemy spies in Britain and plant secret agents abroad. Michael S Goodman tells the story of the Secret Service Bureau's clandestine war with Germany

Commander Mansfield Smith-Cumming (later head of the British Secret Service), Professor Redwood and Bernard Redwood at the Motor Yacht Club Reliability Trials on Southampton Water, 1907. (Photo by Topical Press Agency/Getty Images)

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