Boris Yakovlevich Bukov, also Boris Bykov ("Sasha") Regiment Commissar (15 November 1935) was a member of the Communist Party since 1919. Bykov was head of the underground apparatus with which Whittaker Chambers and Alger Hiss were connected. Early career Bykov graduated from Commanders' Upgrading Training School of Razvedupr of the Red Army Staff in 1929. He received further training at the Red Army Military Academy of Chemical Defense, the Military-Industrial Department (September 1932 - February 1935), and the Red Army Stalin Military Academy of Mechanization and Motorization. As he was fluent in German, Bykov served as an Officer of Soviet Military Intelligence (GRU) from 1920-1941, working in Germany. In 1928 Bykov became the section chief of the 2nd Department of the Razvedupr; later he was appointed Assistant Chief of the 2nd Department of the Razvedupr. Soviet illegal resident In 1935 Bukov left abroad and served as Illegal Rezident of Razvedupr in the United States from 1936 to 1939. After leaving the United States, he became a Lecturer (agent-operation cycle) of the Higher Special School of the Red Army Staff from July 1939 to September 1940, followed by a post as Senior Teacher of the chair of intelligence from September 1940 to June 1941. Wartime service After the German invasion of the Soviet Union in June 1941, Bukov headed the chair of foreign countries study of the Second Moscow State Pedagogical Institute of Foreign Languages which later became known as the Institute of Military Interpreters. References Further reading Lurie, V.M. and Kochick, V.Y., GRU: Cases and People, (St. Petersburg and Moscow: Olma Press, 2003), p. 356 [in Russian]. W. G. Krivitsky, In Stalin’s Secret Service, (New York: Harper Brothers, 1939), 236. Sam Tanenhaus, Whittaker Chambers: A Biography, (New York: Random House, 1997), 548, n. 16. Allen Weinstein, Perjury: The Hiss–Chambers Case, (New York: Random House, 2nd ed. 1997), pp. 204–208 et al. 1935 births Living people Soviet spies GRU officers