German-occupied Denmark rescued most of its own Jews by spiriting them to Sweden by sea in October 1943. This was possible partly because the German presence in Denmark was relatively small. Moreover, while anti-Semitism in the general population of many other countries led to collaboration with the Germans, Jews were an integrated part of Danish culture. Under these unique circumstances, Danish humanitarianism flourished.
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 Germans did not achieve surprise and were not able to outflank or break through into enemy rear areas during the operation.[103] Several historians assert that Operation Citadel was planned and intended to be a blitzkrieg operation.[i] Many of the German participants who wrote about the operation after the war, including Manstein, make no mention of blitzkrieg in their accounts.[j] In 2000, Niklas Zetterling and Anders Frankson characterised only the southern pincer of the German offensive as a "classical blitzkrieg attack".[104] Pier Battistelli wrote that the operational planning marked a change in German offensive thinking away from blitzkrieg and that more priority was given to brute force and fire power than to speed and manoeuvre.[105]
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]
Hitler’s Wehrmacht suffered its first major defeat outside Moscow in December 1941. This put an end to the blitzkrieg as a phenomenon of that period of history. However, three and a half more years of bloody battles lay ahead as part of World War II, which saw the Soviet Union, the United States, the United Kingdom, China and France act as allies against a most dangerous common enemy.
The first official orchestra to be set up in Birkenau was in the men’s camp in August 1942, when a group of sixteen musicians was brought in from the main Auschwitz orchestra.  Unlike in Auschwitz, in Birkenau Jews were allowed to join.  The first conductor was the Polish prisoner Jan Zaborski, who was replaced a few months later by Franz Kopka.  Of this early period in the orchestra's existence, the Polish-Jewish violinist Szymon Laks recalled that those who could,

From the overpass, the road leads directly to the Gate of Death. The railroad spur line that goes through the gate house begins on the left side of the gate, about a quarter of a mile away, and curves around until it forms a straight line in front of the gate. Trains coming from the west entered the Birkenau camp from tracks on the left side of the gate, as you are facing it, and did not pass the railroad station in the town of Auschwitz. Trains coming from the opposite direction passed the train station in Auschwitz and then entered the camp on the spur line. The train tracks end only a few yards from two of the gas chambers inside the Birkenau camp.
According to Polish historian Andrzej Strzelecki, the evacuation of the prisoners by the SS in January 1945 was one of the camp's "most tragic chapters".[234] In mid-1944, about 130,000 prisoners were in Auschwitz when the SS moved around half of them to other concentration camps.[235] In November 1944, with the Soviet Red Army approaching through Poland, Himmler ordered gassing operations to cease. The crematorium IV building was dismantled,[236] and the Sonderkommando was ordered to remove evidence of the killings, including the mass graves.[237] The SS destroyed written records, and in the final week before the camp's liberation, burned or demolished many of its buildings.[238] The plundered goods from the "Canada" barracks at Birkenau, together with building supplies, were transported to the German interior. On 20 January, the overflowing warehouses were set ablaze. Crematoria II and III at Birkenau were blown up on 20 January and crematorium V six days later, just one day ahead of the Soviet attack.[236]
In 2005, the historian Karl-Heinz Frieser summarized blitzkrieg as the result of German commanders using the latest technology in the most beneficial way according to traditional military principles and employing "the right units in the right place at the right time".[13] Modern historians now understand blitzkrieg as the combination of the traditional German military principles, methods and doctrines of the 19th century with the military technology of the interwar period.[14] Modern historians use the term casually as a generic description for the style of manoeuvre warfare practised by Germany during the early part of World War II, rather than as an explanation.[b] According to Frieser, in the context of the thinking of Heinz Guderian on mobile combined arms formations, blitzkrieg can be used as a synonym for modern manoeuvre warfare on the operational level.[15]
Killing on a mass scale using gas chambers or gas vans was the main difference between the extermination and concentration camps.[269] From the end of 1941, the Germans built six extermination camps in occupied Poland: Auschwitz II-Birkenau, Majdanek, Chełmno, and the three Operation Reinhard camps at Belzec, Sobibor, and Treblinka II.[44][270] Maly Trostenets, a concentration camp in the Reichskommissariat Ostland, became a killing centre in 1942.[44] Gerlach writes that over three million Jews were murdered in 1942, the year that "marked the peak" of the mass murder of Jews.[271] At least 1.4 million of these were in the General Government area of Poland.[272]
Having achieved a breakthrough of the enemy's line, units comprising the Schwerpunkt were not supposed to become decisively engaged with enemy front line units to the right and left of the breakthrough area. Units pouring through the hole were to drive upon set objectives behind the enemy front line. In World War II, German Panzer forces used motorised mobility, to paralyse the opponent's ability to react. Fast-moving mobile forces seized the initiative, exploited weaknesses and acted before opposing forces could respond. Central to this was the decision cycle (tempo). Decision-making required time to gather information, make a decision, give orders to subordinates to implement the decision.[citation needed] Through superior mobility and faster decision-making cycles, mobile forces could act quicker than the forces opposing them. Directive control was a fast and flexible method of command. Rather than receiving an explicit order, a commander would be told of his superior's intent and the role which his unit was to fill in this concept. The method of execution was then a matter for the discretion of the subordinate commander. Staff burden was reduced at the top and spread among tiers of command with knowledge about their situation. Delegation and the encouragement of initiative aided implementation, important decisions could be taken quickly and communicated verbally or with brief written orders.[64] Germans soldiers also used Pervitin, a form of Amphetamine, which was given to drivers, to keep them awake.[65]
The commander of Auschwitz-Birkenau, Rudolf Höss, stated in his autobiography that in 1941 (no exact date is given) he was summoned to Berlin, where Himmler informed him that Hitler had issued an order to solve the “Jewish Question” for good, and that the order was to be implemented by the SS. “The existing extermination places in the east are unsuited to a large scale, long-term action. I have designated Auschwitz for this purpose,” Himmler said.
The Auschwitz complex was divided in three major camps: Auschwitz I main camp or Stammlager; Auschwitz II, or Birkenau, established on October 8th, 1941 as a 'Vernichtungslager' (extermination camp); Auschwitz III or Monowitz, established on May 31th, 1942 as an 'Arbeitslager' or work camp; also several sub-camps. There were up to seven gas chambers using Zyklon-B poison gas and three crematoria. Auschwitz II included a camp for new arrivals and those to be sent on to labor elsewhere; a Gypsy camp; a family camp; a camp for holding and sorting plundered goods and a women's camp. Auschwitz III provided slave labor for a major industrial plant run by I G Farben for producing synthetic rubber (see Blechhammer). Highest number of inmates, including sub-camps: 155,000. The estimated number of deaths: 2.1 to 2.5 million killed in gas chambers, of whom about 2 million were Jews, and Poles, Gypsies and Soviet POWs. About 330,000 deaths from other causes.

That month, Himmler ordered the evacuation of all camps, charging camp commanders with "making sure that not a single prisoner from the concentration camps falls alive into the hands of the enemy".[239] Beginning on 17 January, 56,000–58,000 Auschwitz detainees—over 20,000 from Auschwitz I and II, over 30,000 from subcamps, and two-thirds of them Jews—were evacuated under guard, largely on foot, in severe winter conditions, heading west.[240][241] Around 2,200 were evacuated by rail from two subcamps; fewer than 9,000 were left behind, deemed too sick to move.[242] During the marches, camp staff shot anyone too sick or exhausted to continue, or anyone stopping to urinate or tie a shoelace. SS officers walked behind the marchers killing anyone lagging behind who had not already been shot.[234] Peter Longerich estimates that a quarter of the detainees were thus killed.[235] Those who managed to walk to Wodzisław Śląski and Gliwice were sent on open freight cars, without food, to concentration camps in Germany: Bergen-Belsen, Buchenwald, Dachau, Flossenburg, Gross-Rosen, Mauthausen, Dora-Mittelbau, Ravensbruck, and Sachsenhausen.[243]
They did not greet us, nor did they smile; they seemed oppressed not only by compassion but by a confused restraint, which sealed their lips and bound their eyes to the funereal scene. It was that shame we knew so well, the shame that drowned us after the selections, and every time we had to watch, or submit to, some outrage: the shame the Germans did not know, that the just man experiences at another man's crime; the feeling of guilt that such a crime should exist, that it should have been introduced irrevocably into the world of things that exist, and that his will for good should have proved too weak or null, and should not have availed in defence.[251]
Aware that as witnesses to the killings they would eventually be killed themselves, the Sonderkommandos of Birkenau Kommando III staged an uprising on 7 October 1944, following an announcement that some of them would be selected to be "transferred to another camp"—a common Nazi ruse for the murder of prisoners.[228][229] They attacked the SS guards with stones, axes, and makeshift hand grenades, which they also used to damage Crematorium IV and set it on fire. As the SS set up machine guns to attack the prisoners in Crematorium IV, the Sonderkommandos in Crematorium II also revolted, some of them managing to escape the compound.[229][230] The rebellion was suppressed by nightfall.[231]
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]
British theorists J.F.C. Fuller and Captain B. H. Liddell Hart have often been associated with blitzkrieg's development, though this is a matter of controversy. The British War Office did permit an Experimental Mechanised Force, formed on 1 May 1927, that was wholly motorized including self propelled artillery and motorised engineers. It is argued that Guderian, a critical figure in blitzkrieg's conception, drew some of his inspiration from Liddell Hart. This was based on a paragraph in the English edition of Guderian's autobiography in which he credits Liddell Hart. In opposition, it is argued that Liddell Hart, as editor of the autobiography's English edition, wrote that paragraph himself or, more broadly, that his influence on Guderian was not as significant as held. Fuller's influence is less clear. During the war, he developed plans for massive, independent tank operations and was subsequently studied by the German leadership. 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.

After WWII had ended, photographs of the Holocaust stunned the public. Newspapers in the United States had reported on the oppression of the Jews in Germany during the war. In 1942, many newspapers were writing details of the Holocaust, but these stories were short and were not widely read. In 1943, after sources had confirmed the killings of at least two million Jews in concentration camps across Europe a Gallup poll found that less than half of Americans believed these reports to be true; 28% thought they were “just a rumor”. The reports were unconfirmed and sometimes denied by the United States government.
A Jewish skeleton collection was obtained from among a pool of 115 Jewish Auschwitz inmates, chosen for their perceived stereotypical racial characteristics.[b] Rudolf Brandt and Wolfram Sievers, general manager of the Ahnenerbe (a Nazi research institute), delivered the skeletons to the collection of the Anatomy Institute at the Reichsuniversität Straßburg in Occupied France. The collection was sanctioned by Himmler and under the direction of August Hirt. Ultimately 87 of the inmates were shipped to Natzweiler-Struthof and killed in August 1943.[135] Brandt and Sievers were executed in 1948 after being convicted during the Doctors' trial, part of the Subsequent Nuremberg trials.[citation needed]
The gas chambers in the Auschwitz complex constituted the largest and most efficient extermination method employed by the Nazis. Four chambers were in use at Birkenau, each with the potential to kill 6,000 people daily. They were built to look like shower rooms in order to confuse the victims. New arrivals at Birkenau were told that they were being sent to work, but first needed to shower and be disinfected. They would be led into the shower-like chambers, where they were quickly gassed to death with the highly poisonous Zyklon B gas.
As Soviet armies advanced in 1944 and early 1945, Auschwitz was gradually abandoned. On January 18, 1945, some 60,000 prisoners were marched to Wodzisław Śląski, where they were put on freight trains (many in open cars) and sent westward to concentration camps away from the front. One in four died en route from starvation, cold, exhaustion, and despair. Many were shot along the way in what became known as the “death marches.” The 7,650 sick or starving prisoners who remained were found by arriving Soviet troops on January 27, 1945.
Hitler quickly moved to cement his power by suspending many civil liberties and allowing imprisonment without trial. By March, the first Nazi concentration camp was established at Dachau, not to imprison Jews but to hold political dissidents. Further laws targeted Jews, restricting the jobs they could hold and revoking their German citizenship. Anti-Semitic sentiment increased as the Jewish population was blamed for many of Germany's recent and historical problems.

^ In The Drowned and the Saved (1986), Levi wrote that the concentration camps represented the epitome of the totalitarian system: "[N]ever has there existed a state that was really "totalitarian" ... Never has some form of reaction, a corrective of the total tyranny, been lacking, not even in the Third Reich or Stalin's Soviet Union: in both cases, public opinion, the magistrature, the foreign press, the churches, the feeling for justice and humanity that ten or twenty years of tyranny were not enough to eradicate, have to a greater or lesser extent acted as a brake. Only in the Lager [camp] was the restraint from below nonexistent, and the power of these small satraps absolute."[276]
The Texas Senator upset that holocaust denier, Arthur Jones has won the Republican nomination for Illinois third Congressional district. — Fox News, "Judge Jeanine: The rise of socialism," 1 July 2018 In 1947, with immigration quotas still in existence, the SS Exodus, a boat carrying holocaust survivors who intended to migrate to Mandatory Palestine, was boarded by British forces, who killed three and returned the rest to refugee camps in Europe. — Billy Perrigo, Time, "Prince William Is Visiting the Middle East. Here's What to Know About Britain's Controversial Role in Shaping the Region," 25 June 2018 As the son of a Polish holocaust survivor, the images and sounds of this family separation policy is heart wrenching,’ Cohen wrote. — Chris Stirewalt, Fox News, "Like Bush and Obama, Trump gets stuck on immigration," 21 June 2018 According to holocaust historian Eric Saul, about 20 scouts of the 522nd Field Artillery entered Dachau’s ‘Camp X’ finding the crematoria and gas chambers. — Johnny Miller, San Francisco Chronicle, "Survivors thank ‘strange’ liberators," 18 Apr. 2018 In the book, the protagonist — a black female — wakes up 250 years after a nuclear holocaust, to find that humans have been rescued by aliens with three genders. — Billy Perrigo, Time, "Octavia E. Butler, Who Brought Diversity to the World of Science Fiction, Honored With Google Doodle," 22 June 2018 As the son of a Polish holocaust survivor, the images and sounds of this family separation policy is heart wrenching. — Monique Judge, The Root, "Is Michael Cohen About to Flip on Trump?," 20 June 2018 So, yeah, one of the North Korean team members led the world to a nuclear holocaust [but] that’s a truly impactful moment for that kid. — Mark Harris, Ars Technica, "First space, then auto—now Elon Musk quietly tinkers with education," 25 June 2018 To be sure, the current U.S. moral crisis is no holocaust and IBM’s deep involvement in customizing its punch card technology for the Nazis stands out like a red flag compared to a simple government cloud services contract. — Aaron Pressman, Fortune, "Data Sheet—Tech Industry Condemns Migrant Child Separation Policy. But What Will They Actually Do About It?," 20 June 2018
Those prisoners capable, began forcibly marching at the moment when Soviet soldiers were liberating Cracow, some 60 kilometers from the camp. In marching columns escorted by heavily armed SS guards, these 58,000 men and women prisoners were led out of Auschwitz from January 17-21. Many prisoners lost their lives during this tragic evacuation, known as the Death March.
The Holocaust began in 1933 when Adolf Hitler came to power in Germany and ended in 1945 when the Nazis were defeated by the Allied powers. The term Holocaust is derived from the Greek word holokauston, which means sacrifice by fire. It refers to the Nazi persecution and planned slaughter of the Jewish people and others considered inferior to "true" Germans. The Hebrew word Shoah, which means devastation, ruin or waste, also refers to this genocide.
In 1944, Plaszow transitioned from a labor camp to a concentration camp and all Jews were to be sent to the death camp at Auschwitz. Schindler requested Göth allow him to relocate his factory to Brnĕnec, in the Sudetenland, and produce war goods. He was told to draw up a list of workers he wanted to take with him. With Stern’s help, Schindler created a list of 1,100 Jewish names he deemed “essential” for the new factory. Permission was granted and the factory was moved. Not wanting to contribute to the German war effort, Schindler ordered his workers to purposefully make defective products that would fail inspection. The employees spent the remaining months of the war in the factory.
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]

By July 1944, Germany was losing the war; the SS began closing down the easternmost concentration camps and deporting the remaining prisoners westward. Many were killed in Auschwitz and the Gross-Rosen concentration camp. Schindler convinced SS-Hauptsturmführer Amon Göth, commandant of the nearby Kraków-Płaszów concentration camp, to allow him to move his factory to Brněnec in the Protectorate of Bohemia and Moravia, thus sparing his workers from almost certain death in the gas chambers. Using names provided by Jewish Ghetto Police officer Marcel Goldberg, Göth's secretary Mietek Pemper compiled and typed the list of 1,200 Jews who travelled to Brünnlitz in October 1944. Schindler continued to bribe SS officials to prevent the execution of his workers until the end of World War II in Europe in May 1945, by which time he had spent his entire fortune on bribes and black market purchases of supplies for his workers.