Title: Polʹskiĭ plen
Subjects: Prisoners of war, Russo-Polish War, 1919-1920, History, Polish Prisoners and prisons, History (general) and history of Europe, History of Russia. Soviet Union. Former Soviet Republics, Military and naval history, Period between World Wars (1919-1939), Poland
Places: Poland, Soviet Union
Time periods: Wars of 1918-1921