Ministry of State Security (Soviet Union)

The MGB (Russian: МГБ), an initialism for Ministerstvo gosudarstvennoy bezopasnosti SSSR (Russian: Министе́рство госуда́рственной безопа́сности СССР, IPA: [mʲɪnʲɪˈsʲtʲerstvə ɡəsʊˈdarstvʲɪn(ː)əj bʲɪzɐˈpasnəsʲtʲɪ]; translated in English as Ministry for State Security), was the name of the Soviet state security apparatus dealing with internal and external security issues: secret police duties, foreign and domestic intelligence and counterintelligence, etc from 1946 to 1953.

Chronology of Soviet
security agencies
1917–22 Cheka under SNK of the RSFSR
(All-Russian Extraordinary Commission)
1922–23 GPU under NKVD of the RSFSR
(State Political Directorate)
1923–34 OGPU under SNK of the USSR
(Joint State Political Directorate)
1934–46 NKVD of the USSR
(People's Commissariat for Internal Affairs)
1934–41 GUGB of the NKVD of the USSR
(Main Directorate of State Security of
People's Commissariat for Internal Affairs)
1941 NKGB of the USSR
(People's Commissariat of State Security)
1934–46 NKVD of the USSR
(People's Commissariat for Internal Affairs)
1943–46 NKGB of the USSR
(People's Commissariat for State Security)
1946–53 MGB of the USSR
(Ministry of State Security)
1947–51

KI MID of the USSR
(Committee of Information under Ministry
of Foreign Affairs)

1946–54 MVD of the USSR
(Ministry of Internal Affairs)
1954–78 KGB under SM of the USSR
(Committee for State Security)
1978–91 KGB of the USSR
(Committee for State Security)
1991 MSB of the USSR
(Interrepublican Security Service)
1991 TsSB of the USSR
(Central Intelligence Service)
1991 KOGG of the USSR
(Committee for the Protection of
the State Border)