Operation Trust: The Soviet Counterintelligence Masterstroke

Operation Trust was a counterintelligence operation of the State Political Directorate of the Soviet Union. The operation, which was set up by GPU's predecessor Cheka, ran from 1921 to 1927, set up a fake anti-Bolshevik resistance organization, "Monarchist Union of Central Russia", MUCR, in order to help the OGPU identify real monarchists and anti-Bolsheviks.