1939-1943: Pyotr Soprunenko, major of state security[10] 1943-1945: I.A. Petrov, lieutenant general[10] 1945-1947: Mikhail Krivenko (Krivenko Mikhail Spiridonovich, 1904–1954)[10] 1947-1949: Taras Filippov, lieutenant general[10] 1949-1950: I.A. Petrov, lieutenant general[10] (deputy chief, until his discharge by health reasons on November 21, 1950)[11] 1950-1953: Amayak Kobulov, lieutenant general[10] (1950-1951: NKVD GUPVI, 1951-1953: MVD UPVI)