Title: Shchit i mech vlasti bolʹshevikov
Subjects: History, Government policy, Secret service, Political persecution, Historiography, Russian S.F.S.R. Chrezvychaĭnai︠a︡ komissii︠a︡ po borʹbe s kontr-revoli︠u︡t︠s︡ieĭ i sabotazhem, Russian S.F.S.R., Internal security
Places: Soviet Union
Time periods: Revolution, 1917-1921