Schindler joined the separatist Sudeten German Party in 1935. Although he was a citizen of Czechoslovakia, Schindler became a spy for the Abwehr, the military intelligence service of Nazi Germany, in 1936. He was assigned to Abwehrstelle II Commando VIII, based in Breslau. He later told Czech police that he did it because he needed the money; by this time Schindler had a drinking problem and was chronically in debt.
Kristallnacht was the night that German citizens smashed windows in Jewish shops and set fire to over 200 Jewish Synagogues throughout Germany, Austria and the Sudetenland in what is now the Czech Republic. Ninety-one people were killed during this uncontrolled riot which the police did not try to stop. That night, Hitler and his henchmen were gathered at the Bürgerbräukeller, a beer hall in Munich, celebrating the anniversary of Hitler's attempt to take over the German government by force in 1923; Hitler's failed Putsch had been organized at the Bürgerbräukeller.
David M. Crowe’s book Oskar Schindler: The Untold Account of His Life, Wartime Activities and the True Story Behind The List should be considered a classic in investigative and historical research. Based on interviews with dozens of Holocaust survivors saved by Oskar Schindler and with access to documents unavailable to Schindler’s List author Thomas Keneally, Crowe sheds light on one of the most dramatic and important stories to come out of World War II.
The workers who constructed the original buildings were housed in camps near Fallingbostel and Bergen, the latter being the so-called Bergen-Belsen Army Construction Camp. Once the military complex was completed in 1938/39, the workers' camp fell into disuse. However, after the German invasion of Poland in September 1939, the Wehrmacht began using the huts as a prisoner of war (POW) camp.