More on NKVD from Fact Monster:

• Gulag - Gulag Gulag, system of forced-labor prison camps in the USSR, from the Russian acronym [GULag] for ...
• secret police: The Evolution of Secret Police Forces - The Evolution of Secret Police Forces Some argue that secret police forces have always been ...
• Encyclopedia: Russian, Soviet, and CIS History - Encyclopeadia articles concerning Russian, Soviet, and CIS History.

See more Encyclopedia articles on: Russian, Soviet, and CIS History