There was initially little to distinguish Schindler from the other businessmen who cooperated with the Nazis, until the liquidation of the Kraków ghetto threatened the workers he relied on. As the war dragged on and Schindler began to build personal relationships with his workers, he underwent a personal transformation. Over time, Schindler became less concerned with making a profit; soon he was spending enormous sums of money to keep his workers safe.
Military historians have defined blitzkrieg as the employment of the concepts of maneuver and combined arms warfare developed in Germany during both the interwar period and the Second World War. Strategically, the ideal was to swiftly effect an adversary's collapse through a short campaign fought by a small, professional army. Operationally, its goal was to use indirect means, such as, mobility and shock, to render an adversary's plans irrelevant or impractical. To do this, self-propelled formations of tanks; motorized infantry, engineers, artillery; and ground-attack aircraft operated as a combined-arms team. Historians have termed it a period form of the longstanding German principle of Bewegungskrieg, or movement war.
In the Lviv pogroms in occupied Poland in July 1941, some 6,000 Polish Jews were murdered in the streets, on top of 3,000 arrests and mass shootings by Einsatzgruppe C.[m] During the Jedwabne pogrom, on 10 July 1941, a group of 40 Polish men killed several hundred Jews; around 300 were burned alive in a barn. The attack is thought to have been organized by the German Security Police (Sicherheitsdienst). A long debate about who was responsible for the Jedwabne murders was triggered in 2001 by the publication of Jan T. Gross's book Neighbors: The Destruction of the Jewish Community in Jedwabne, Poland. The response to the book was described as "the most prolonged and far-reaching of any discussion of the Jewish issue in Poland since the Second World War".
The rioting was triggered by the assassination of Ernst vom Rath, a German diplomat in Paris, by a Polish Jewish teenager, Herschel Grynszpan, on November 7th. Grynszpan did not attempt to escape and claimed that the assassination was motivated by the persecution of the Jewish people. Despite being attended to by Hitler’s personal physician, vom Rath died two days later.
Nearly all lectures concerned the strategic uses of airpower; virtually none discussed tactical co-operation with the Army. Similarly in the military journals, emphasis centred on 'strategic’ bombing. The prestigious Militärwissenschaftliche Rundeschau, the War Ministry's journal, which was founded in 1936, published a number of theoretical pieces on future developments in air warfare. Nearly all discussed the use of strategic airpower, some emphasising that aspect of air warfare to the exclusion of others. One author commented that European military powers were increasingly making the bomber force the heart of their airpower. The manoeuvrability and technical capability of the next generation of bombers would be ’as unstoppable as the flight of a shell.
Schindler grew up in Svitavy, Moravia, and worked in several trades until he joined the Abwehr, the military intelligence service of Nazi Germany, in 1936. He joined the Nazi Party in 1939. Prior to the German occupation of Czechoslovakia in 1938, he collected information on railways and troop movements for the German government. He was arrested for espionage by the Czechoslovak government but was released under the terms of the Munich Agreement in 1938. Schindler continued to collect information for the Nazis, working in Poland in 1939 before the invasion of Poland at the start of World War II. In 1939, Schindler acquired an enamelware factory in Kraków, Poland, which employed at the factory's peak in 1944 about 1,750 workers, of whom 1,000 were Jews. His Abwehr connections helped Schindler protect his Jewish workers from deportation and death in the Nazi concentration camps. As time went on, Schindler had to give Nazi officials ever larger bribes and gifts of luxury items obtainable only on the black market to keep his workers safe.