Witold Pilecki was a Polish World War II cavalry officer, intelligence agent, and resistance leader.
Witold Pilecki as KL-Auschwitz prisoner, KL Number 4859, 1940
Pilecki, Mokotów Prison, Warsaw, 1947
The Ministry of Public Security, was the secret police, intelligence and counter-espionage agency operating in the Polish People's Republic. From 1945 to 1954 it was known as the Security Office, and from 1956 to 1990 as the Security Service.
Citroën Traction Avant, a car commonly used by the UB
The PKWN Manifesto, issued on 22 July 1944
Józef Światło, born Izaak Fleischfarb, defected to the West and spoke publicly of UB's brutal actions