These concepts remained tactical and operational. Grand-strategic and economic planning in Adolf Hitler’s Reich were not shaped by a doctrine of lightning war. A familiar argument is that Nazi Germany deliberately rearmed in breadth rather than depth, proposing to tailor its force mix to specific situations in the context of a diplomatic strategy designed to keep Germany’s enemies isolated from one another. However, no significant data support such a grand design. Instead, the best evidence indicates that Hitler sought rearmament in both breadth and depth, with an economy oriented to military needs as completely as possible. Instead, far from coordinating their specific preparations, the army, navy, and air force competed so intensely for scarce raw materials that as early as 1938 their demands seriously overheated the ramshackle Nazi economy. Throughout the war the Wehrmacht’s inability to cooperate internally was one of Germany’s most significant military weaknesses–a far cry from the smoothly working machine that is the essence of blitzkrieg in popular myths.
In his 1965 essay "Command and Compliance", which originated in his work as an expert witness for the prosecution at the Frankfurt Auschwitz Trials, the German historian Hans Buchheim wrote there was no coercion to murder Jews and others, and all who committed such actions did so out of free will. Buchheim wrote that chances to avoid executing criminal orders "were both more numerous and more real than those concerned are generally prepared to admit",[468] and that he found no evidence that SS men who refused to carry out criminal orders were sent to concentration camps or executed.[469] Moreover, SS rules prohibited acts of gratuitous sadism, as Himmler wished for his men to remain "decent"; acts of sadism were carried out on the initiative of those who were either especially cruel or wished to prove themselves ardent National Socialists.[468] Finally, he argued that those of a non-criminal bent who committed crimes did so because they wished to conform to the values of the group they had joined and were afraid of being branded "weak" by their colleagues if they refused.[470]
Germany invaded Norway and Denmark on 9 April 1940, during Operation Weserübung. Denmark was overrun so quickly that there was no time for an organized resistance to form. Consequently, the Danish government stayed in power and the Germans found it easier to work through it. Because of this, few measures were taken against the Danish Jews before 1942.[157] By June 1940 Norway was completely occupied.[158] In late 1940, the country's 1,800 Jews were banned from certain occupations, and in 1941 all Jews had to register their property with the government.[159] On 26 November 1942, 532 Jews were taken by police officers, at four o'clock in the morning, to Oslo harbour, where they boarded a German ship. From Germany they were sent by freight train to Auschwitz. According to Dan Stone, only nine survived the war.[160]
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.
December 11, 1941 - Hitler declares war on the United States. President Roosevelt then asks Congress for a declaration of war on Germany saying, "Never before has there been a greater challenge to life, liberty and civilization." The U.S.A. then enters the war in Europe and will concentrate nearly 90 percent of its military resources to defeat Hitler.
By the spring of 1942, the Nazis had established six killing centers (death camps) in Poland: Chelmno (Kulmhof), Belzec, Sobibor, Treblinka, Maidanek and Auschwitz. All were located near railway lines so that Jews could be easily transported daily. A vast system of camps (called Lagersystem) supported the death camps. The purpose of these camps varied: some were slave labor camps, some transit camps, others concentration camps and their sub­camps, and still others the notorious death camps. Some camps combined all of these functions or a few of them. All the camps were intolerably brutal.

By the end of 1934 Hitler was in absolute control of Germany, and his campaign against the Jews in full swing. The Nazis claimed the Jews corrupted pure German culture with their "foreign" and "mongrel" influence. They portrayed the Jews as evil and cowardly, and Germans as hardworking, courageous, and honest. The Jews, the Nazis claimed, who were heavily represented in finance, commerce, the press, literature, theater, and the arts, had weakened Germany's economy and culture. The massive government-supported propaganda machine created a racial anti-Semitism, which was different from the long­standing anti-Semitic tradition of the Christian churches.
In reality, the way in which the Wehrmacht fought, their 'doctrine' in today's parlance, was based more upon ideas than technology. And the ideas that shaped how Hitler's army fought were influenced by the fighting methods German soldiers had used since the 1870s. The so-called blitzkrieg of 1940 was really the German doctrine of 1914 with technology bolted on.
Auschwitz-Birkenau was the largest Nazi extermination and concentration camp, located in the Polish town of Oswiecim, 37 miles west of Cracow. One sixth of all Jews murdered by the Nazis were gassed at Auschwitz. In April 1940 SS chief Heinrich Himmler ordered the establishment of a new concentration camp in Oswiecim, a town located within the portion of Poland that was annexed to Germany at the beginning of World War II. The first Polish political prisoners arrived in Auschwitz in June 1940, and by March 1941 there were 10,900 prisoners, the majority of whom were Polish. Auschwitz soon became known as the most brutal of the Nazi concentration camps.
Part of Spielberg’s reluctance to make Schindler's List was that he didn’t feel that he was prepared or mature enough to tackle a film about the Holocaust. So he tried to recruit other directors to make the film. He first approached director Roman Polanski, a Holocaust survivor whose own mother was killed in Auschwitz. Polanski declined, but would go on to make his own film about the Holocaust, The Pianist, which earned him a Best Director Oscar in 2003. Spielberg then offered the movie to director Sydney Pollack, who also passed.
After World War II, Schindler and his wife Emilie settled in Regensburg, Germany, until 1949, when they immigrated to Argentina. In 1957, permanently separated but not divorced from Emilie, Schindler returned alone to Germany. Schindler died in Germany, penniless and almost unknown, in October 1974. Many of those whose survival he facilitated—and their descendants—lobbied for and financed the transfer of his body for burial in Israel.
In the summer of 1942, when Germany launched another offensive in the southern USSR against Stalingrad and the Caucasus, the Soviets again lost tremendous amounts of territory, only to counter-attack once more during winter. German gains were ultimately limited by Hitler diverting forces from the attack on Stalingrad itself and seeking to pursue a drive to the Caucasus oilfields simultaneously as opposed to subsequently as the original plan had envisaged.
A hedonist and gambler by nature, Schindler soon adopted a profligate lifestyle, carousing into the small hours of the night, hobnobbing with high ranking SS-officers, and philandering with beautiful Polish women. Schindler seemed to be no different from other Germans who had come to Poland as part of the occupation administration and their associates. The only thing that set him apart from other war-profiteers, was his humane treatment of his workers, especially the Jews.
Moreover, one of the key successes of the Blitzkrieg was its use of FM radios – these enabled the forces that had broken through the lines to inform support units as to their progress and relay information on what was behind enemy lines. This superior intelligence was a crucial tool at the German’s disposal and allowed them to perform far more organised assaults on the enemy. The communication technology promoted quick, decentralised decision-making that was key to this speed focused approach.
Though the Nazis tried to keep operation of camps secret, the scale of the killing made this virtually impossible. Eyewitnesses brought reports of Nazi atrocities in Poland to the Allied governments, who were harshly criticized after the war for their failure to respond, or to publicize news of the mass slaughter. This lack of action was likely mostly due to the Allied focus on winning the war at hand, but was also a result of the general incomprehension with which news of the Holocaust was met and the denial and disbelief that such atrocities could be occurring on such a scale.
As the mass shootings continued in Russia, the Germans began to search for new methods of mass murder. This was driven by a need to have a more efficient method than simply shooting millions of victims. Himmler also feared that the mass shootings were causing psychological problems in the SS. His concerns were shared by his subordinates in the field.[251] In December 1939 and January 1940, another method besides shooting was tried. Experimental gas vans equipped with gas cylinders and a sealed compartment were used to kill the disabled and mentally-ill in occupied Poland.[252] Similar vans, but using the exhaust fumes rather than bottled gas, were introduced to the Chełmno extermination camp in December 1941,[253] and some were used in the occupied Soviet Union, for example in smaller clearing actions in the Minsk ghetto.[254] They also were used for murder in Yugoslavia.[255]
Schindler’s most effective tool in this privately conceived rescue campaign was the privileged status his plant enjoyed as a “business essential to the war effort” as accorded him by the Military Armaments Inspectorate in occupied Poland. This not only qualified him to obtain lucrative military contracts, but also enabled him to draw on Jewish workers who were under the jurisdiction of the SS. When his Jewish employees were threatened with deportation to Auschwitz by the SS, he could claim exemptions for them, arguing that their removal would seriously hamper his efforts to keep up production essential to the war effort. He did not balk at falsifying the records, listing children, housewives, and lawyers as expert mechanics and  metalworkers, and, in general, covering up as much as he could for unqualified or temporarily incapacitated workers.
Adam Tooze wrote that the German economy was being prepared for a long war. The expenditure for this war was extensive and put the economy under severe strain. The German leadership were concerned less with how to balance the civilian economy and the needs of civilian consumption but to figure out how to best prepare the economy for total war. Once war had begun, Hitler urged his economic experts to abandon caution and expend all available resources on the war effort but the expansion plans only gradually gained momentum in 1941. Tooze wrote that the huge armament plans in the pre-war period did not indicate any clear-sighted blitzkrieg economy or strategy.[134]
After the Allied landings at Normandy, the Germans began a counter-offensive to overwhelm the landing force with armoured attacks but these failed for lack of co-ordination and Allied superiority in anti-tank defence and in the air. The most notable attempt to use deep penetration operations in Normandy was Operation Luttich at Mortain, which only hastened the Falaise Pocket and the destruction of German forces in Normandy. The Mortain counter-attack was defeated by the US 12th Army Group with little effect on its own offensive operations.[108]
^ Historian H.P. Willmott writes that, "Many examples of the experiences and losses suffered by German formations moving up to the front are well known. Panzer Lehr, for instance, on 7 June alone lost 84 half-tracks, prime movers and self propelled guns, 40 fuel bowsers, 90 soft-skinned vehicles and five tanks as it made its way from Le Mans to Caen.[74]
Ghettos were intended to be temporary until the Jews were deported to other locations, which never happened. Instead, the inhabitants were sent to extermination camps. The ghettos were, in effect, immensely crowded prisons serving as instruments of "slow, passive murder."[216] Though the Warsaw Ghetto contained 30% of Warsaw's population, it occupied only 2.5% of the city's area, averaging over 9 people per room.[217] Between 1940 and 1942, starvation and disease, especially typhoid, killed many in the ghettos.[218] Over 43,000 Warsaw ghetto residents, or one in ten of the total population, died in 1941;[219] in Theresienstadt, more than half the residents died in 1942.[216]
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.
The most infamous doctor at Auschwitz was Josef Mengele, the "Angel of Death", who worked in Auschwitz II from 30 May 1943, at first in the gypsy family camp.[127] Particularly interested in performing research on identical twins, dwarfs, and those with hereditary disease, Mengele set up a kindergarten in barracks 29 and 31 for children he was experimenting on, and for all Romani children under six, where they were given better food rations.[128] From May 1944, he would select twins and dwarfs during selection on the Judenrampe,[129] reportedly calling for twins with "Zwillinge heraus!" ("twins step forward!").[130] He and other doctors (the latter prisoners) would measure the twins' body parts, photograph them, and subject them to dental, sight and hearing tests, x-rays, blood tests, surgery, and blood transfusions between them.[131] Then he would have them killed and dissected.[129] Kurt Heissmeyer, another German doctor and SS officer, took 20 Jewish children from Auschwitz to use in pseudoscientific medical experiments at the Neuengamme concentration camp.[132] In April 1945, the children were killed by hanging to conceal the project.[133]
As a member of the Nazi Party and the Abwehr intelligence service, Schindler was in danger of being arrested as a war criminal. Bankier, Stern, and several others prepared a statement he could present to the Americans attesting to his role in saving Jewish lives. He was also given a ring, made using gold from dental work taken out of the mouth of Schindlerjude Simon Jeret. The ring was inscribed "Whoever saves one life saves the world entire."[77] To escape being captured by the Russians, Schindler and his wife departed westward in their vehicle, a two-seater Horch, initially with several fleeing German soldiers riding on the running boards. A truck containing Schindler's mistress Marta, several Jewish workers, and a load of black market trade goods followed behind. The Horch was confiscated by Russian troops at the town of Budweis, which had already been captured by Russian troops. The Schindlers were unable to recover a diamond that Oskar had hidden under the seat.[78] They continued by train and on foot until they reached the American lines at the town of Lenora, and then travelled to Passau, where an American Jewish officer arranged for them to travel to Switzerland by train. They moved to Bavaria in Germany in the fall of 1945.[79]