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Graduated from Commanders' Upgrading Training School of RAZVEDUPR of the [[Red Army Staff]] in 1929, Red Army Military Academy of Chemical Defense, military-industrial department (September 1932 - February 1935), Red Army Stalin Military Academy of Mechanization and Motorization. Bykov was fluent in German.  Bukov served as an Officer of Soviet Military Intelligence ([[GRU]]) from 1920-1941.  Worked in Germany. In 1928 Bykov became the section chief of the 2nd department of Razvedupr; assistant chief of the 2nd department of Razvedupr of the Red Army Staff.  

Graduated from Commanders' Upgrading Training School of RAZVEDUPR of the [[Red Army Staff]] in 1929, Red Army Military Academy of Chemical Defense, military-industrial department (September 1932 - February 1935), Red Army Stalin Military Academy of Mechanization and Motorization. Bykov was fluent in German.  Bukov served as an Officer of Soviet Military Intelligence ([[GRU]]) from 1920-1941.  Worked in Germany. In 1928 Bykov became the section chief of the 2nd department of Razvedupr; assistant chief of the 2nd department of Razvedupr of the Red Army Staff.  

In 1935 Bykov left abroad and served as ''Illegal'' [e.g. 'undercover'] ''Rezident'' of Razvedupr in the United States from 1936 to 1939.

In 1935 Bykov left abroad and served as ''Illegal'' [e.g. 'undercover'] ''[[Rezident]]'' of Razvedupr in the United States from 1936 to 1939.

      

      

Lecturer (agent-operation cycle) of the Higher Special School of the Red Army Staff from July 1939 to September 1940.  Senior Teacher of the chair of intelligence from September 1940 to June 1941.

Lecturer (agent-operation cycle) of the Higher Special School of the Red Army Staff from July 1939 to September 1940.  Senior Teacher of the chair of intelligence from September 1940 to June 1941.