In that video he brought up painful memories about how his own father was lied to as he fought, and how he returned to Austria a broken man, physically and emotionally, after being wounded at Leningrad.Historians estimate that around 1.1 million people were killed at Auschwitz during the war. Around 1 million of them were Jews. Some 75,000 Poles were killed there, as well as Roma, Russian prisoners of war and others.