The last part of an offensive operation was the destruction of un-subdued pockets of resistance, which had been enveloped earlier and by-passed by the fast-moving armoured and motorised spearheads. The Kesselschlacht 'cauldron battle' was a concentric attack on such pockets. It was here that most losses were inflicted upon the enemy, primarily through the mass capture of prisoners and weapons. During Operation Barbarossa, huge encirclements in 1941 produced nearly 3.5 million Soviet prisoners, along with masses of equipment.[f]
In fall 1941, the Nazis began transporting Jews out of the ghetto. Most of them were sent to the Bełżec extermination camp and killed. On 13 March 1943, the ghetto was liquidated and those still fit for work were sent to the new concentration camp at Płaszów. Several thousand not deemed fit for work were sent to extermination camps and killed. Hundreds more were killed on the streets by the Nazis as they cleared out the ghetto. Schindler, aware of the plans because of his Wehrmacht contacts, had his workers stay at the factory overnight to prevent them coming to harm. Schindler witnessed the liquidation of the ghetto and was appalled. From that point forward, says Schindlerjude Sol Urbach, Schindler "changed his mind about the Nazis. He decided to get out and to save as many Jews as he could."
The Gestapo arrested him several times and interrogated him on charges of irregularities and of favoring Jews. However, Schindler would not desist. In 1943, at the invitation of the American Jewish Joint Distribution Committee, he undertook a highly risky journey to Budapest, where he met with two representatives of Hungarian Jewry. He reported to them about the desperate plight of the Jews in Poland and discussed possible ways of relief.
The twin goals of racial purity and spatial expansion were the core of Hitler’s worldview, and from 1933 onward they would combine to form the driving force behind his foreign and domestic policy. At first, the Nazis reserved their harshest persecution for political opponents such as Communists or Social Democrats. The first official concentration camp opened at Dachau (near Munich) in March 1933, and many of the first prisoners sent there were Communists.
After attending primary and secondary school, Schindler enrolled in a technical school, from which he was expelled in 1924 for forging his report card. He later graduated, but did not take the Abitur exams that would have enabled him to go to college or university. Instead, he took courses in Brno in several trades, including chauffeuring and machinery, and worked for his father for three years. A fan of motorcycles since his youth, Schindler bought a 250-cc Moto Guzzi racing motorcycle and competed recreationally in mountain races for the next few years.