This section profiles British subjects who spied for Soviet intelligence, together with British figures central to the early intelligence struggle against the Bolshevik state. The core of the section is the Cambridge Five (Kim Philby, Donald Maclean, Guy Burgess, Anthony Blunt, and John Cairncross), recruited in the 1930s, who penetrated the Foreign Office, MI6, and MI5. Other entries cover the atomic spy Melita Norwood, who worked for the Soviets for decades before being exposed by the Mitrokhin archive in 1999, Metropolitan Police officer John Symonds, and engineer Michael John Smith, convicted in 1993. The section also includes Sidney Reilly, the British agent whose operations against the Bolsheviks ended with his capture and execution by the OGPU in 1925.
