Entering conquered Soviet territories alongside the Wehrmacht (the German armed forces) were 3,000 men of the Einsatzgruppen (“Deployment Groups”), special mobile killing units. Their task was to murder Jews, Soviet commissars, and Roma in the areas conquered by the army. Alone or with the help of local police, native anti-Semitic populations, and accompanying Axis troops, the Einsatzgruppen would enter a town, round up their victims, herd them to the outskirts of the town, and shoot them. They killed Jews in family units. Just outside Kiev, Ukraine, in the ravine of Babi Yar, an Einsatzgruppe killed 33,771 Jews on September 28–29, 1941. In the Rumbula Forest outside the ghetto in Riga, Latvia, 25,000–28,000 Jews were shot on November 30 and December 8–9. Beginning in the summer of 1941, Einsatzgruppen murdered more than 70,000 Jews at Ponary, outside Vilna (now Vilnius) in Lithuania. They slaughtered 9,000 Jews, half of them children, at the Ninth Fort, adjacent to Kovno (now Kaunas), Lithuania, on October 28.
After Germany’s loss in WWI, the Treaty of Versailles punished Germany by placing tough restrictions on the country. The treaty made Germany take full responsibility for the war, reduced the extent of German territory, severely limited the size and placement of their armed forces, and forced Germany to pay the allied powers reparations. These restrictions not only increased social unrest but, combined with the start of the Great Depression, collapsed the German economy as inflation rose alongside unemployment.
The generally accepted definition of blitzkrieg operations include the use of maneuver rather than attrition to defeat an opponent, and describe operations using combined arms concentration of mobile assets at a focal point, armour closely supported by mobile infantry, artillery and close air support assets. These tactics required the development of specialized support vehicles, new methods of communication, new tactics, and an effective decentralized command structure. Broadly speaking, blitzkrieg operations required the development of mechanized infantry, self-propelled artillery and engineering assets that could maintain the rate of advance of the tanks. German forces avoided direct combat in favour of interrupting an enemy's communications, decision-making, logistics and of reducing morale. In combat, blitzkrieg left little choice for the slower defending forces but to clump into defensive pockets that were encircled and then destroyed by following German infantry.
When the selection process was complete, a work group of prisoners called the ‘Kanada Kommando’ collected the belongings of victims and took them to the ‘Kanada’ warehouse facility for sorting and transporting back to Germany. To the prisoners, Canada was a country that symbolised wealth. They, therefore, gave the ironic name Kanada (the German spelling of Canada) to the warehouse area as it was full of possessions, clothing and jewellery.
In September 1939, Germany invaded Poland, starting World War II. Schindler left his wife and traveled to Krakow, hoping to profit from the impending war. Looking for business opportunities, he quickly became involved in the black market. By October, Schindler used his charm and doled out “gifts of gratitude” (contraband goods) to bribe high-ranking German officers. Wanting to expand his business interests, Schindler obtained a former Jewish enamelware factory to produce goods for the German military.
Use of armoured forces was crucial for both sides on the Eastern Front. Operation Barbarossa, the German invasion of the Soviet Union in 1941, involved a number of breakthroughs and encirclements by motorised forces. Its goal according to Führer Directive 21 (18 December 1940) was "to destroy the Russian forces deployed in the West and to prevent their escape into the wide-open spaces of Russia."[90] The Red Army was to be destroyed west of the Dvina and Dnieper rivers, which were about 500 kilometres (310 mi) east of the Soviet border, to be followed by a mopping-up operation. The surprise attack resulted in the near annihilation of the Voyenno-Vozdushnye Sily (VVS, Soviet Air Force) by simultaneous attacks on airfields,[91] allowing the Luftwaffe to achieve total air supremacy over all the battlefields within the first week.[92][93] On the ground, four German panzer groups outflanked and encircled disorganised Red Army units, while the marching infantry completed the encirclements and defeated the trapped forces.[94] In late July, after 2nd Panzer Group (commanded by Guderian) captured the watersheds of the Dvina and Dnieper rivers near Smolensk, the panzers had to defend the encirclement, because the marching infantry divisions were still hundreds of kilometres to the west.[91]
Various other German industrial enterprises, such as Krupp and Siemens-Schuckert, built factories with their own subcamps.[68] There were around 40[69] or 50[70] such camps, 28 of them near industrial plants, each camp holding hundreds or thousands of prisoners.[71] Designated as Aussenlager (external camp), Nebenlager (extension or subcamp), or Arbeitslager (labor camp),[69] camps were built at Blechhammer, Jawiszowice, Jaworzno, Lagisze, Mysłowice, Trzebinia, and centers as far afield as the Protectorate of Bohemia and Moravia in Czechoslovakia.[72][73][74] Industries with satellite camps included coal mines, foundries and other metal works, and chemical plants. Prisoners were also made to work in forestry and farming.[75] Budy, for example, was a farming subcamp where prisoners worked 12-hour days, often in the fields, but sometimes tending animals, cleaning ponds, digging ditches, and making compost. Human ashes from the crematorium were mixed with sod and manure to make the compost.[76] Incidents of sabotage to decrease production took place in several subcamps, including Charlottengrube, Gleiwitz II, and Rajsko.[77]

The Allied offensive in central France, spearheaded by armored units from George S. Patton's Third Army, used breakthrough and penetration techniques that were essentially identical to Guderian's prewar "armoured idea." Patton acknowledged that he had read both Guderian and Rommel before the war, and his tactics shared the traditional cavalry emphasis on speed and attack. A phrase commonly used in his units was "haul ass and bypass."
After 1942, the economic functions of the camps, previously secondary to their penal and terror functions, came to the fore. Forced labor of camp prisoners became commonplace.[182] The guards became much more brutal, and the death rate increased as the guards not only beat and starved prisoners, but killed them more frequently.[186] Vernichtung durch Arbeit ("extermination through labor") was a policy—camp inmates would literally be worked to death, or to physical exhaustion, at which point they would be gassed or shot.[187] The Germans estimated the average prisoner's lifespan in a concentration camp at three months, due to lack of food and clothing, constant epidemics, and frequent punishments for the most minor transgressions.[188] The shifts were long and often involved exposure to dangerous materials.[189]
Having achieved a breakthrough into the enemy's rear areas, German forces attempted to paralyze the enemy's decision making and implementation process. Moving faster than enemy forces, mobile forces exploited weaknesses and acted before opposing forces could formulate a response. Guderian wrote that "Success must be exploited without respite and with every ounce of strength, even by night. The defeated enemy must be given no peace."

The only person at MCA/Universal who agreed with Spielberg and director of cinematography Janusz Kaminski’s decision to shoot the movie in black and white was Sheinberg. Everyone else lobbied against the idea, saying that it would stylize the Holocaust. Spielberg and Kaminski chose to shoot the film in a grimy, unstylish fashion and format inspired by German Expressionist and Italian Neorealist films. Also, according to Spielberg, “It’s entirely appropriate because I’ve only experienced the Holocaust through other people’s testimonies and through archival footage which is, of course, all in black and white.”

Whilst carrying out this final evacuation the SS had set about removing evidence of their crimes. Many thousands of documents were set alight. Between 21 and 26 January 1945, the Germans blew up  and partially dismantled the gas chambers and crematoria in Birkenau. Kanada II, the warehouse in which property plundered from victims of the gas chambers was stored and sorted, was also looted and set alight. Members of the Wehrmacht joined in the looting.
In the Sinai and Palestine Campaign, operations involved some aspects of what would later be called blitzkrieg.[38] Key elements in the "blitzkrieg warfare" at the decisive Battle of Megiddo included concentration, surprise and speed; success depended on attacking only in terrain favoring the movement of large formations around the battlefield and tactical improvements in the British artillery and infantry attack.[39][40] General Edmund Allenby used infantry to attack the strong Ottoman front line in co-operation with supporting artillery, augmented by the guns of two destroyers.[41][42] Through constant pressure by infantry and cavalry, two Ottoman armies in the Judean Hills were kept off-balance and virtually encircled during the Battles of Sharon and Nablus (Battle of Megiddo).[43]
Although the factory had been expected to begin production in 1943, shortages of labor and raw materials meant start-up had to be postponed repeatedly.[64] The Allies bombed the plant in 1944 on 20 August, 13 September, 18 December, and again on 26 December. On 19 January 1945, the SS ordered that the site be evacuated, sending 9,000 inmates on a death march to another Auschwitz subcamp at Gliwice.[65] The plant had almost been ready to commence production.[66] From Gliwice, prisoners were taken by rail in open freight wagons to Buchenwald and Mauthausen concentration camps. The 800 inmates who had been left behind in the Monowitz hospital were liberated on 27 January 1945 by the 1st Ukrainian Front of the Red Army.[67]
Although the factory had been expected to begin production in 1943, shortages of labor and raw materials meant start-up had to be postponed repeatedly.[64] The Allies bombed the plant in 1944 on 20 August, 13 September, 18 December, and again on 26 December. On 19 January 1945, the SS ordered that the site be evacuated, sending 9,000 inmates on a death march to another Auschwitz subcamp at Gliwice.[65] The plant had almost been ready to commence production.[66] From Gliwice, prisoners were taken by rail in open freight wagons to Buchenwald and Mauthausen concentration camps. The 800 inmates who had been left behind in the Monowitz hospital were liberated on 27 January 1945 by the 1st Ukrainian Front of the Red Army.[67]
Guderian argued that the tank would be the decisive weapon of the next war. "If the tanks succeed, then victory follows", he wrote. In an article addressed to critics of tank warfare, he wrote "until our critics can produce some new and better method of making a successful land attack other than self-massacre, we shall continue to maintain our beliefs that tanks—properly employed, needless to say—are today the best means available for land attack." Addressing the faster rate at which defenders could reinforce an area than attackers could penetrate it during the First World War, Guderian wrote that "since reserve forces will now be motorized, the building up of new defensive fronts is easier than it used to be; the chances of an offensive based on the timetable of artillery and infantry co-operation are, as a result, even slighter today than they were in the last war." He continued, "We believe that by attacking with tanks we can achieve a higher rate of movement than has been hitherto obtainable, and—what is perhaps even more important—that we can keep moving once a breakthrough has been made."[154][l] Guderian additionally required that tactical radios be widely used to facilitate coordination and command by having one installed in all tanks.

November 4, 1943 - Quote from Nazi newspaper, Der Stürmer, published by Julius Streicher - "It is actually true that the Jews have, so to speak, disappeared from Europe and that the Jewish 'Reservoir of the East' from which the Jewish pestilence has for centuries beset the peoples of Europe has ceased to exist. But the Führer of the German people at the beginning of the war prophesied what has now come to pass."
As the calibre of the orchestra improved under the baton of Laks, the SS began to make more frequent and diverse requests of the musicians.  On Sundays they were forced to give concerts of ‘light’ music, and they expanded their repertoire to include excerpts from operas and operettas.  They were also frequently given special requests by various guards.  They composed special musical medleys in honour of SS officials' birthdays.  Some Nazis regularly attended rehearsals, playing music with the musicians, and even on occasion befriending them.  Members of the orchestra were also frequently commanded to entertain at late-night parties for camp VIPs and the guards. 
The Warsaw Ghetto Uprising was the largest ghetto revolt. Massive deportations (or Aktions) had been held in the ghetto from July to September 1942, emptying the ghetto of the majority of Jews imprisoned there. When the Germans entered the ghetto again in January 1943 to remove several thousand more, small unorganized groups of Jews attacked them. After four days, the Germans withdrew from the ghetto, having deported far fewer people than they had intended. The Nazis reentered the ghetto on April 19, 1943, the eve of Passover, to evacuate the remaining Jews and close the ghetto. The Jews, using homemade bombs and stolen or bartered weapons, resisted and withstood the Germans for 27 days. They fought from bunkers and sewers and evaded capture until the Germans burned the ghetto building by building. By May 16 the ghetto was in ruins and the uprising crushed.
Blitzkrieg tactics were used in the successful German invasions of Belgium, the Netherlands, and France in 1940, which saw audacious applications of air power and airborne infantry to overcome fixed fortifications that were believed by the defenders to be impregnable. The Kesselschlacht campaigns on the Eastern Front were staggering in scale, with Kessels that covered vast swathes of territory, enveloping hundreds of thousands of troops. Blitzkrieg tactics were also used by the German commander Erwin Rommel during the desert campaigns in North Africa.
Similarly, in Ordinary Men (1992), Christopher Browning examined the deeds of German Reserve Police Battalion 101 of the Ordnungspolizei ("order police"), used to commit massacres and round-ups of Jews, as well as mass deportations to the death camps. The members of the battalion were middle-aged men of working-class background from Hamburg, who were too old for regular military duty. They were given no special training. During the murder of 1,500 Jews from Józefów in Poland, their commander allowed them to opt out of direct participation. Fewer than 12 men out of a battalion of 500 did so. Influenced by the Milgram experiment on obedience, Browning argued that the men killed out of peer pressure, not bloodlust.[471]
The PORT Technology personal transit management was invented in 2009 to remove many of the existing constraints on interior layouts, thereby allowing architects greater creative freedom when designing the next generation of buildings. The technology consists of a standalone terminal (installed on the wall or on a standalone pillar) with an LCD monitor that used to choose a floor destination, similar to the Miconic 10. PORT is the successor of Miconic 10 and Schindler ID.
During the era of the Holocaust, German authorities also targeted other groups because of their perceived racial and biological inferiority: Roma (Gypsies), people with disabilities, and some of the Slavic peoples (Poles, Russians, and others). Other groups were persecuted on political, ideological, and behavioral grounds, among them Communists, Socialists, Jehovah's Witnesses, and homosexuals.
When Germany invaded Poland in September 1939, triggering World War II, Adolf Hitler ordered that the Polish leadership and intelligentsia be destroyed.[16] Approximately 65,000 civilians, viewed as inferior to the Aryan master race, had been killed by the end of 1939. In addition to leaders of Polish society, the Nazis killed Jews, prostitutes, the Roma, and the mentally ill.[17][18] SS-Obergruppenführer Reinhard Heydrich, then head of the Gestapo, ordered on 21 September 1939 that Polish Jews be rounded up and concentrated into cities with good rail links. Initially the intention was to deport them to points further east, or possibly to Madagascar.[19] Two years later, in June 1941, in an attempt to obtain new territory, Hitler invaded the Soviet Union.[8]
Jerzy Tabeau (prisoner no. 27273, registered as Jerzy Wesołowski) and Roman Cieliczko (no. 27089), both Polish prisoners, escaped on 19 November 1943; Tabeau made contact with the Polish underground and, between December 1943 and early 1944, wrote what became known as the Polish Major's report about the situation in the camp.[221] On 27 April 1944, Rudolf Vrba (no. 44070) and Alfréd Wetzler (no. 29162) escaped to Slovakia, carrying detailed information to the Slovak Jewish Council about the gas chambers. The distribution of the Vrba-Wetzler report, and publication of parts of it in June 1944, helped to halt the deportation of Hungarian Jews to Auschwitz. On 27 May 1944, Arnost Rosin (no. 29858) and Czesław Mordowicz (no. 84216) also escaped to Slovakia; the Rosin-Mordowicz report was added to the Vrba-Wetzler and Tabeau reports to become what is known as the Auschwitz Protocols.[222] The reports were first published in their entirety in November 1944 by the United States War Refugee Board, in a document entitled The Extermination Camps of Auschwitz (Oświęcim) and Birkenau in Upper Silesia.[223]
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]
Auschwitz inmates began working at the plant, known as Buna Werke and IG Auschwitz, in April 1941, and demolishing houses in Monowitz to make way for it. By May, because of a shortage of trucks, several hundred of them were rising at 3 am to walk there twice a day from Auschwitz I.[53] Anticipating that a long line of exhausted inmates walking through the town of Oświęcim might harm German-Polish relations, the inmates were told to shave daily, make sure they were clean, and sing as they walked. From late July they were taken there by train on freight wagons.[54] Because of the difficulty of moving them, including during the winter, IG Farben decided to build a camp at the plant. The first inmates moved there on 30 October 1942.[55] Known as KL Auschwitz III-Aussenlager (Auschwitz III-subcamps), and later as Monowitz concentration camp,[56] it was the first concentration camp to be financed and built by private industry.[57]
Despite the term blitzkrieg being coined during the Invasion of Poland of 1939, historians generally hold that German operations during it were more consistent with more traditional methods. The Wehrmacht's strategy was more inline with Vernichtungsgedanken, or a focus on envelopment to create pockets in broad-front annihilation. Panzer forces were deployed among the three German concentrations without strong emphasis on independent use, being used to create or destroy close pockets of Polish forces and seize operational-depth terrain in support of the largely un-motorized infantry which followed. The Luftwaffe gained air superiority by a combination of superior technology and numbers. Common claims that the Polish Air Force was destroyed early in the campaign while it was on the ground are not true. Polish aircraft were moved to hidden airstrips approximately 48 hours before the outbreak of the hostilities.
Throughout the late-1930s, the Nazi government began to forcibly acquire ethnically German territory in Austria and Czechoslovakia that was taken from Germany at the end of the First World War. Although the international community initially allowed Germany to incorporate these territories into the growing German Empire, it became increasingly clear that Hitler’s ambition did not stop at these small territories. When Germany invaded Poland on September 1, 1939, Britain and France responded by declaring war on Germany, beginning the Second World War.
In 1916, General Alexei Brusilov had used surprise and infiltration tactics during the Brusilov Offensive. Later, Marshal Mikhail Tukhachevsky, Georgii Isserson and other members of the Red Army developed a concept of deep battle from the experience of the Polish–Soviet War. These concepts would guide Red Army doctrine throughout World War II. Realising the limitations of infantry and cavalry, Tukhachevsky was an advocate of mechanised formations and the large-scale industrialisation required. Robert Watt (2008) wrote that blitzkrieg holds little in common with Soviet deep battle.[48] In 2002, H. P. Willmott had noted that deep battle contained two important differences: it was a doctrine of total war, not limited operations, and decisive battle was rejected in favour of several large, simultaneous offensives.[49]
At the three Reinhard camps the victims were killed by the exhaust fumes of stationary diesel engines.[279] Gold fillings were pulled from the corpses before burial, but the women's hair was cut before death. At Treblinka, to calm the victims, the arrival platform was made to look like a train station, complete with fake clock.[300] Majdanek used Zyklon-B gas in its gas chambers.[301] In contrast to Auschwitz, the three Reinhard camps were quite small.[302] Most of the victims at these camps were buried in pits at first. Sobibór and Bełżec began exhuming and burning bodies in late 1942, to hide the evidence, as did Treblinka in March 1943. The bodies were burned in open fireplaces and the remaining bones crushed into powder.[303]

During the war, the Condor Legion undertook the bombing of Guernica which had a tremendous psychological effect on the populations of Europe. The results were exaggerated, and the Western Allies concluded that the "city-busting" techniques were now a part of the German way in war. The targets of the German aircraft were actually the rail lines and bridges. But lacking the ability to hit them with accuracy (only three or four Ju 87s saw action in Spain), a method of carpet bombing was chosen resulting in heavy civilian casualties.[80]
During World War I, Fuller had been a staff officer attached to the new tank corps. He developed Plan 1919 for massive, independent tank operations, which he claimed were subsequently studied by the German military. It is variously argued that Fuller's wartime plans and post-war writings were an inspiration or that his readership was low and German experiences during the war received more attention. The German view of themselves as the losers of the war, may be linked to the senior and experienced officers' undertaking a thorough review, studying and rewriting of all their Army doctrine and training manuals.[148]
James Corum wrote that it was a myth that the Luftwaffe had a doctrine of terror bombing, in which civilians were attacked to break the will or aid the collapse of an enemy, by the Luftwaffe in Blitzkrieg operations. After the bombing of Guernica in 1937 and the Rotterdam Blitz in 1940, it was commonly assumed that terror bombing was a part of Luftwaffe doctrine. During the interwar period the Luftwaffe leadership rejected the concept of terror bombing in favour of battlefield support and interdiction operations.[137]
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Living standards were not high in the late 1930s. Consumption of consumer goods had fallen from 71 percent in 1928 to 59 percent in 1938. The demands of the war economy reduced the amount of spending in non-military sectors to satisfy the demand for the armed forces. On 9 September, Göring as Head of the Reich Defence Council, called for complete "employment" of living and fighting power of the national economy for the duration of the war. Overy presents this as evidence that a "blitzkrieg economy" did not exist.[133]
Although many people responded with obstructionism and doubt,  several rescue operations were run throughout Axis-controlled Europe. Some were the work of prominent individuals like Raoul Wallenberg and Carl Lutz who worked largely alone while other operations were far more complex. A network of Catholic bishops and clergymen organized local protests and shelter campaigns throughout much of Europe that are today estimated to have saved 860,000 lives. Danish fishermen clandestinely ferried more than 7,000 Jews into neutral Sweden while the French town of Chambon-sur-Lignon sheltered between 3,000 and 5,000 refugees.
Seldom in the history of military thought have such elaborate interpretive structures been built on a more limited foundation. The term blitzkrieg was in fact never used in the title of a German military manual or handbook. Nor is it to be widely found in the memoirs or correspondence of German generals. The word was used in the Wehrmacht during World War II but was commonly considered to be of foreign origin. Guderian wrote in Panzer Leader that “our enemies coined the word.” The first known use of the word blitzkrieg in an English publication occurred in an article in Time magazine in September 25, 1939, discussing the Polish campaign. From there the word came into general circulation as a shorthand description of a form of war that seemed to have no convenient existing frame of reference. From Western sources it expanded into German popular military literature, and from there into history. The transmission process was facilitated by the British theorists J. F. C. Fuller and Basil Liddell Hart, who insisted that their concepts of mobile war were fundamental to the German victories of 1939-1941.
Schindler’s profits were extraordinarily high because he used low-paid Jewish workers from the ghetto the Nazis established in the city. During the war, many industrialists like Schindler used the forced labor of Jews living in Nazi ghettos or concentration camps. Major German companies, including Volkswagen, Bayer, and IG Farben, the largest chemical company in the world at the time, profited handsomely from coerced labor. This labor often occurred in the worst conditions possible, and many workers died as a result of being subjected to excessively long, arduous work shifts without adequate food.
The British and American governments were reluctant to publicize the intelligence they had received. A BBC Hungarian Service memo, written by Carlile Macartney, a BBC broadcaster and senior Foreign Office adviser on Hungary, stated in 1942: "We shouldn't mention the Jews at all." The British government's view was that the Hungarian people's antisemitism would make them distrust the Allies if Allied broadcasts focused on the Jews.[346] The US government similarly feared turning the war into one about the Jews; antisemitism and isolationism were common in the US before its entry into the war.[347] Although governments and the German public appear to have understood what was happening, it seems the Jews themselves did not. According to Saul Friedländer, "[t]estimonies left by Jews from all over occupied Europe indicate that, in contradistinction to vast segments of surrounding society, the victims did not understand what was ultimately in store for them." In Western Europe, he writes, Jewish communities seem to have failed to piece the information together, while in Eastern Europe, they could not accept that the stories they heard from elsewhere would end up applying to them too.[348]

Birkenau was created in 1941 as a satellite of the Auschwitz camp. The village of Brzezinka was evacuated for this purpose, and a handful of farm buildings were woven into the structure of the camp. This was even the case with the main gas chambers, which were located at the northern end of the site, where the railway tracks meet their end. Transits of prisoners were brought here from across Europe, and it was here that the 'Final Solution' was conducted at its most relentless level.
Sprawozdanie 6/42 was sent to Polish officials in London by courier and had reached them by 12 November 1942, when it was translated into English and added to another report, "Report on Conditions in Poland". Dated 27 November, this was forwarded to the Polish Embassy in the United States.[341] On 10 December 1942, the Polish Foreign Affairs Minister, Edward Raczyński, addressed the fledgling United Nations on the killings; the address was distributed with the title The Mass Extermination of Jews in German Occupied Poland. He told them about the use of poison gas; about Treblinka, Bełżec and Sobibor; that the Polish underground had referred to them as extermination camps; and that tens of thousands of Jews had been killed in Bełżec in March and April 1942.[342] One in three Jews in Poland were already dead, he estimated, from a population of 3,130,000.[343] Raczyński's address was covered by the New York Times and The Times of London. Winston Churchill received it, and Anthony Eden presented it to the British cabinet. On 17 December 1942, 11 Allies issued the Joint Declaration by Members of the United Nations condemning the "bestial policy of cold-blooded extermination".[344][345]
[t]hroughout the Polish Campaign, the employment of the mechanised units revealed the idea that they were intended solely to ease the advance and to support the activities of the infantry....Thus, any strategic exploitation of the armoured idea was still-born. The paralysis of command and the breakdown of morale were not made the ultimate aim of the ... German ground and air forces, and were only incidental by-products of the traditional maneuvers of rapid encirclement and of the supporting activities of the flying artillery of the Luftwaffe, both of which had as their purpose the physical destruction of the enemy troops. Such was the Vernichtungsgedanke of the Polish campaign.[82]
Auschwitz I, a former Polish army barracks, was the main camp (Stammlager) and administrative headquarters of the camp complex. Intending to use it to house political prisoners, Reichsführer-SS Heinrich Himmler, head of the Schutzstaffel (SS), approved the site in April 1940 on the recommendation of SS-Obersturmbannführer (lieutenant colonel) Rudolf Höss, then of the Concentration Camps Inspectorate. Höss oversaw the development of the camp and served as its first commandant, with SS-Obersturmführer (senior lieutenant) Josef Kramer as his deputy.[21] Around 1,000 m long and 400 m wide,[22] Auschwitz I consisted of 20 brick buildings, six of them two-story; a second story was added to the others in 1943 and eight new blocks were built.[23] The camp housed the SS barracks and by 1943 held 30,000 inmates.[22] The first 30 prisoners arrived on 20 May 1940 after being transported from the Sachsenhausen concentration camp in Oranienburg, Germany. Convicted German criminals (Berufsverbrecher), the men were known as "greens" after the green triangles they were required to wear on their prison clothing. Brought to the camp as functionaries, this group did much to establish the sadism of early camp life, which was directed particularly at Polish inmates, until the political prisoners began to take over their roles.[4]

Some prisoners kept diaries, recording life inside the camp, so that the world would one day know the story of what happened to them. Others collected evidence of the killings and events within the camp, burying it in the hope that one day someone would find the evidence of the atrocities. Prisoners had to be careful to make sure these form of indirect resistance went undiscovered by the SS guards and kapos.
Schindler joined the separatist Sudeten German Party in 1935.[6] 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.[7] 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.[8]