Title: Osobyĭ otdel VChK protiv polʹskoĭ razvedki
Subjects: Intelligence service, History, Secret service, Soviet Espionage, Russian S.F.S.R. Chrezvychaĭnai͡a komissii͡a po borʹbe s kontr-revoli͡ut͡sieĭ i sabotazhem, Russian S.F.S.R., Russian S.F.S.R. Chrezvychaĭnai︠a︡ komissii︠a︡ po borʹbe s kontr-revoli︠u︡t︠s︡ieĭ i sabotazhem
Places: Soviet Union, Poland
Time periods: 20th century