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xiii Abbreviations CIA US Central Intelligence Agency CPUSA Communist Party of the United States of America FBI US Federal Bureau of Investigation GRU  Glavnoe Razvedyvatel’noe Upravlenie (Main Intelligence Directorate). The GRU is the foreign military intelligence directorate of the General Staff of the Armed Forces of the Russian Federation and collects intelligence overseas on military issues related to Russian national security. During the Soviet era, the GRU belonged to the Soviet Army General Staff of the Soviet Union. KGB  Komitet Gosudarstvennoy Bezopasnosti (Soviet Committee of State Security), 1954–91. NKGB  Narodnyy Komissariat Gosudarstvennoy Bezopasnosti (People ’s Commissariat for State Security), February 1941–July 1944; April 1943–March 1946. NKVD  Narodnyy Komissariat Vnutrennych Del (People’s Commissariat for Internal Affairs), July 1934–February 1941; July 1941–April 1943. OGPU  Ob”edinennoe Gosudarstvennoe Politicheskoe Upravlenie (Joint State Political Directorate), 1923–34. xiii This page intentionally left blank ...

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