When in August 1944 his factory was decommissioned, Schindler successfully petitioned to have it moved to Brnĕnec (Brünnlitz) in the Sudetenland, close to his hometown. Schindler and his associates composed a list of Jewish workers that he deemed essential for the new factory and submitted it for approval to the Jewish labour office. (With several versions of the list known, it is difficult to determine how many people were ultimately selected.) Though those chosen were diverted for a time to other concentration camps, Schindler intervened, ensuring that 700 men and 300 women eventually arrived at Brnĕnec. They were later joined by 100 more Jews who had been transported from another concentration camp by the Nazis and abandoned in train cars in Brnĕnec. Those who reached the camp spent the remaining months of the war manufacturing munitions that were rigged to fail. A final head count compiled at this time listed 1,098 Jews at the camp.
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 Polish government-in-exile in London learned about the extermination camps from the Polish leadership in Warsaw, who from 1940 "received a continual flow of information about Auschwitz", according to historian Michael Fleming.[333] This was in large measure thanks to Captain Witold Pilecki of the Polish Home Army, who allowed himself to be arrested in Warsaw and spent 945 days in Auschwitz from September 1940 until April 1943, organizing the resistance movement inside the camp.[334]
Construction of crematorium I began at Auschwitz I at the end of June or beginning of July 1940.[26] Initially intended not for mass murder but for prisoners who had been executed or had otherwise died in the camps, the crematorium was in operation from August 1940 until July 1943, by which time the crematoria at Auschwitz II had taken over.[27] By May 1942 three ovens had been installed in crematorium I, which together could burn 340 bodies in 24 hours.[28]
After examining several sites for a new plant to manufacture Buna-N, a type of synthetic rubber essential to the war effort, the German chemical cartel IG Farben chose a site near the towns of Dwory and Monowice (Monowitz in German), about 7 kilometres (4.3 mi) east of Auschwitz I.[50] Tax exemptions were available to corporations prepared to develop industries in the frontier regions under the Eastern Fiscal Assistance Law, passed in December 1940. The site had good railway connections and access to raw materials.[51] In February 1941, Himmler ordered that the Jewish population of Oświęcim be expelled to make way for skilled laborers; that all Poles able to work remain in the town and work on building the factory; and that Auschwitz prisoners be used in the construction work.[52]

In the final months of the war, SS guards moved camp inmates by train or on forced marches, often called “death marches,” in an attempt to prevent the Allied liberation of large numbers of prisoners. As Allied forces moved across Europe in a series of offensives against Germany, they began to encounter and liberate concentration camp prisoners, as well as prisoners en route by forced march from one camp to another. The marches continued until May 7, 1945, the day the German armed forces surrendered unconditionally to the Allies.
What is clear is the practical implementation of this doctrine in a wide and successful range of scenarios by Guderian and other Germans during the war. From early combined-arms river crossings and penetration exploitations during the advance in France in 1940 to massive sweeping advances in Russia in 1941, Guderian showed a mastery and innovation that inspired many others. This leadership was supported and fostered by the Reichswehr General Staff system, which worked the Army to greater and greater levels of capability through massive and systematic Movement Warfare war games in the 1930s.
Fuller and Liddell Hart were "outsiders": Liddell Hart was unable to serve as a soldier after 1916 after being gassed on the Somme and Fuller's abrasive personality resulted in his premature retirement in 1933.[149] Their views had limited impact in the British army; the War Office permitted the formation of an Experimental Mechanized Force on 1 May 1927, composed of tanks, lorried infantry, self-propelled artillery and motorised engineers but the force was disbanded in 1928 on the grounds that it had served its purpose. A new experimental brigade was intended for the next year and became a permanent formation in 1933, during the cuts of the 1932/33–1934/35 financial years.[150]
Ellis, as well as Zaloga in his study of the Polish Campaign in 1939, points to the effective use of other arms such as artillery and aerial firepower as equally important to the success of German (and later, Allied) operations. Panzer operations in Russia failed to provide decisive results; Leningrad never fell despite an entire Panzer Group being assigned to take it, nor did Moscow. In 1942 panzer formations overstretched at Stalingrad and in the Caucasus, and what successes did take place - such as Manstein at Kharkov or Krivoi Rog - were of local significance only.
Use of bunkers I and 2 stopped in spring 1943 when the new crematoria were built, although bunker 2 became operational again in May 1944 for the murder of the Hungarian Jews.[47] Crematorium II, which had been designed as a mortuary with morgues in the basement and ground-level incinerators, was converted by installing gas-tight doors, vents for the Zyklon B to be dropped into the chamber, and ventilation equipment to remove the gas thereafter.[48] It went into operation in March 1943. Crematorium III was built using the same design. Crematoria IV and V, designed from the start as gassing centers, were also constructed that spring. By June 1943, all four crematoria were operational. Most of the victims were killed using these four structures.[49]
As long as Rosé remained in charge of the orchestra, it maintained a fairly high level of skill and a large repertoire.  The musicians participated in strenuous rehearsals and even more stressful concerts and private performances.  Although the vast majority of their music-making was (with the exception of the daily march music) for the benefit of the SS and the small group of ‘elite’ prisoners, the orchestra would occasionally give special concerts to the regular inmates, and make visits to the infirmary.  However, upon Rosé's sudden and mysterious death on 4 April 1944, the orchestra began to slowly crumble.  Rosé was replaced by the Ukrainian pianist and copyist Sonya Winogradowa, who, although liked by the other musicians, was not a particularly effective leader.  At the end of 1944, the non-Jewish members were sent to Auschwitz I, while the Jews were deported to Bergen-Belsen.  Relatively many survived the war.
Blitzkrieg's immediate development began with Germany's defeat in the First World War. Shortly after the war, the new Reichswehr created committees of veteran officers to evaluate 57 issues of the war. The reports of these committees formed doctrinal and training publications which were the standards in the Second World War. The Reichswehr was influenced by its analysis of pre-war German military thought, in particular its infiltration tactics of the war, and the maneuver warfare which dominated the Eastern Front.
Victims usually arrived at the camps by freight train.[278] Almost all arrivals at the Operation Reinhard camps of Treblinka, Sobibór, and Bełżec were sent directly to the gas chambers,[279] with individuals occasionally selected to replace dead workers.[280] At Auschwitz, camp officials usually subjected individuals to selections;[281] about 25%[282] of the new arrivals were selected to work.[281] Those selected for death at all camps were told to undress and hand their valuables to camp workers.[283] They were then herded naked into the gas chambers. To prevent panic, they were told the gas chambers were showers or delousing chambers.[284] The procedure at Chełmno was slightly different. Victims there were placed in a mobile gas van and asphyxiated, while being driven to prepared burial pits in the nearby forests. There the corpses were unloaded and buried.[285]
By 1943 it was evident to the armed forces leadership that Germany was losing the war.[358] The mass murder continued nevertheless, reaching a "frenetic" pace in 1944.[359] Auschwitz was gassing up to 6,000 Jews a day by spring that year.[360] On 19 March 1944, Hitler ordered the military occupation of Hungary and dispatched Eichmann to Budapest to supervise the deportation of the country's Jews.[361] From 22 March, Jews were required to wear the yellow star; forbidden from owning cars, bicycles, radios or telephones; then forced into ghettos.[362] From 15 May to 9 July, 440,000 Jews were deported from Hungary to Auschwitz-Birkenau, almost all to the gas chambers.[v] A month before the deportations began, Eichmann offered to exchange one million Jews for 10,000 trucks and other goods from the Allies, the so-called "blood for goods" proposal.[365] The Times called it "a new level of fantasy and self-deception".[366]

Birkenau was subdivided into several sections, fairly isolated from one another, and each supporting its own unique cultural scene.  There was a men’s camp, a women’s camp, and two ‘family camps’, one for Roma and Sinti, and the other for Jews brought from Theresienstadt.  Both ‘family camps’ were eventually liquidated, but before then the inmates were allowed to live in relatively better conditions than the other inmates.  They were not required to have their heads shaved, at least initially were given more generous rations and various other 'privileges', and above all were allowed to stay together as families.  Each of these mini-camps supported its own band, as well as a variety of singing, performing and instrumental groups.

Auschwitz, Polish Oświęcim, also called Auschwitz-Birkenau, Nazi Germany’s largest concentration camp and extermination camp. Located near the industrial town of Oświęcim in southern Poland (in a portion of the country that was annexed by Germany at the beginning of World War II), Auschwitz was actually three camps in one: a prison camp, an extermination camp, and a slave-labour camp. As the most lethal of the Nazi extermination camps, Auschwitz has become the emblematic site of the “final solution,” a virtual synonym for the Holocaust. Between 1.1 and 1.5 million people died at Auschwitz; 90 percent of them were Jews. Also among the dead were some 19,000 Roma who were held at the camp until the Nazis gassed them on July 31, 1944—the only other victim group gassed in family units alongside the Jews. The Poles constituted the second largest victim group at Auschwitz, where some 83,000 were killed or died.
The number of Afro-Germans in Germany when the Nazis came to power is variously estimated at 5,000–25,000.[454] It is not clear whether these figures included Asians. Although blacks, including prisoners of war, in Germany and German-occupied Europe were subjected to incarceration, sterilization, murder, and other abuse, there was no programme to kill them all as there was for the Jews.[455]
Initially, Schindler was mostly interested in the money-making potential of the business and hired Jews because they were cheaper than Poles—the wages were set by the occupying Nazi regime.[38] Later he began shielding his workers without regard for cost.[39] The status of his factory as a business essential to the war effort became a decisive factor enabling him to help his Jewish workers. Whenever Schindlerjuden (Schindler Jews) were threatened with deportation, he claimed exemptions for them. He claimed wives, children, and even people with disabilities were necessary mechanics and metalworkers.[39] On one occasion, the Gestapo came to Schindler demanding that he hand over a family that possessed forged identity papers. "Three hours after they walked in," Schindler said, "two drunk Gestapo men reeled out of my office without their prisoners and without the incriminating documents they had demanded."[40]