"Blitzkrieg" has since expanded into multiple meanings in more popular usage. From its original military definition, "blitzkrieg" may be applied to any military operation emphasizing the surprise, speed, or concentration stressed in accounts of the Invasion of Poland. During the war, the Luftwaffe terror bombings of London came to be known as The Blitz. Similarly, blitz has come to describe the " blitz" (rush) tactic of American football, and the blitz form of chess in which players are allotted very little time. Blitz or blitzkrieg is used in many other non-military contexts.
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.
Deportees were brought to Auschwitz crammed in wretched conditions into goods or cattle wagons, arriving near a railway station or at one of several dedicated trackside ramps, including one next to Auschwitz I. The Altejudenrampe (old Jewish ramp), part of the Oświęcim freight railway station, was used from 1942 to 1944 for Jewish transports.[102][103] Located between Auschwitz I and Auschwitz II, arriving at this ramp meant a 2.5 km journey to Auschwitz II and the gas chambers. Most deportees were forced to walk, accompanied by SS men and a car with a Red Cross symbol that carried the Zyklon B, as well as an SS doctor in case officers were poisoned by mistake. Inmates arriving at night, or who were too weak to walk, were taken by truck.[104] Work on another railway line and Judenrampe (pictured right) between sectors BI and BII in Auschwitz II, was completed in May 1944 for the arrival of Hungarian Jews,[103] who between May and early July 1944 were deported to Auschwitz II at a rate of 12,000 a day.[105] The rails led directly to the area around the gas chambers.[102]
Thus although the Nazi 'Final Solution' was one genocide among many, it had features that made it stand out from all the rest as well. Unlike all the others it was bounded neither by space nor by time. It was launched not against a local or regional obstacle, but at a world-enemy seen as operating on a global scale. It was bound to an even larger plan of racial reordering and reconstruction involving further genocidal killing on an almost unimaginable scale, aimed, however, at clearing the way in a particular region – Eastern Europe – for a further struggle against the Jews and those the Nazis regarded as their puppets. It was set in motion by ideologues who saw world history in racial terms. It was, in part, carried out by industrial methods. These things all make it unique.
As in the concentration camps, those prisoners selected for work faced appalling conditions and severe treatment. After being woken at dawn, they would have to stand in line for the roll call and endure many hours of hard labour. At the end of the working day, exhausted, they returned to the camp, when they would once again have to stand in line for evening roll call.
Almost all Jews within areas occupied by the Germans were killed. There were 3,020,000 Jews in the Soviet Union in 1939, and the losses were 1–1.1 million.[400] Around one million Jews were killed by the Einsatzgruppen in the occupied Soviet territories.[401][402] Of Poland's 3.3 million Jews, about 90 percent were killed.[369] Many more died in the ghettos of Poland before they could be deported.[403] The death camps accounted for half the number of Jews killed; 80–90 percent of death-camp victims are estimated to have been Jews.[394] At Auschwitz-Birkenau the Jewish death toll was 1.1 million;[286][404] Treblinka 870,000–925,000;[405] Bełżec 434,000–600,000;[406][287] Chełmno 152,000–320,000;[407][288] Sobibór 170,000–250,000;[408][291] and Majdanek 79,000.[289]
In July 1938, representatives of 32 countries met in the French town of Evian to discuss the refugee and immigration problems created by the Nazis in Germany. Nothing substantial was done or decided at the Evian Conference, and it became apparent to Hitler that no one wanted the Jews and that he would not meet resistance in instituting his Jewish policies. By the autumn of 1941, Europe was in effect sealed to most legal emigration. The Jews were trapped.

Although effective in quick campaigns against Poland and France, blitzkrieg could not be sustained by Germany in later years. Blitzkrieg strategy has the inherent danger of the attacking force overextending its supply lines, and the strategy as a whole can be defeated by a determined foe who is willing to sacrifice territory for time in which to regroup and rearm, as the Soviets did on the Eastern Front. Tank and vehicle production was a constant problem for Germany; indeed, late in the war many panzer "divisions" had no more than a few dozen tanks. As the end of the war approached, Germany also experienced critical shortages in fuel and ammunition stocks as a result of Anglo-American strategic bombing. Although production of Luftwaffe fighter aircraft continued, they would be unable to fly for lack of fuel. What fuel there was went to panzer divisions, and even then they were not able to operate normally. Of those Tiger tanks lost against the United States Army, nearly half of them were abandoned for lack of fuel.

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.

When the Nazi’s rose to power they built facilities to hold and, eventually kill, their enemies. When the first concentration camps were built in 1933, this primarily meant political dissidents and opponents of the Nazi government, such as German Communists, Socialists, Social Democrats but would grow to include asocial groups – Gypsies, Jehovah’s Witnesses, the homeless, the mentally ill and homosexuals.  It was not until Kristallnacht that the prisoners became primarily Jewish.

Frieser wrote that the Heer (German pronunciation: [ˈheːɐ̯])[k] was not ready for blitzkrieg at the start of the war. A blitzkrieg method called for a young, highly skilled mechanised army. In 1939–40, 45 percent of the army was 40 years old and 50 percent of the soldiers had only a few weeks' training. The German army, contrary to the blitzkrieg legend, was not fully motorised and had only 120,000 vehicles, compared to the 300,000 of the French Army. The British also had an "enviable" contingent of motorised forces. Thus, "the image of the German 'Blitzkrieg' army is a figment of propaganda imagination". During the First World War the German army used 1.4 million horses for transport and in the Second World War used 2.7 million horses; only ten percent of the army was motorised in 1940.[130]

At the end of the war, between 50,000 and 100,000 Jewish survivors were living in three zones of occupation: American, British and Soviet. Within a year, that figure grew to about 200,000. The American zone of occupation contained more than 90 percent of the Jewish displaced persons (DPs). The Jewish DPs would not and could not return to their homes, which brought back such horrible memories and still held the threat of danger from anti-Semitic neighbors. Thus, they languished in DP camps until emigration could be arranged to Palestine, and later Israel, the United States, South America and other countries. The last DP camp closed in 1957 (David S. Wyman, "The United States," in David S. Wyman, ed., The World Reacts to the Holocaust, Baltimore, MD: Johns Hopkins University Press, 1996, pp. 707­10).
From the earliest years of the Nazi regime, German authorities persecuted homosexuals and others whose behavior did not match prescribed social norms. German police officials targeted thousands of political opponents (including Communists, Socialists, and trade unionists) and religious dissidents (such as Jehovah's Witnesses). Many of these individuals died as a result of incarceration and maltreatment.
After the liquidation of the Polish state and its institutions, the fundamental goal of German policy in occupied Poland was the exploitation of material and labor resources, and the removal of the local Polish population and ethnic minorities. This was done through expulsion and systematic extermination. The Polish lands were to be completely germanized, through German settlement in the depopulated area.
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.
During the Holocaust, concentration camp prisoners received tattoos only at one location, Auschwitz. Incoming prisoners were assigned a camp serial number which was sewn to their prison uniforms. Only those prisoners selected for work were issued serial numbers; those prisoners sent directly to the gas chambers were not registered and received no tattoos.
Allied armies began using combined arms formations and deep penetration strategies that Germany had used in the opening years of the war. Many Allied operations in the Western Desert and on the Eastern Front, relied on firepower to establish breakthroughs by fast-moving armoured units. These artillery-based tactics were also decisive in Western Front operations after Operation Overlord and the British Commonwealth and American armies developed flexible and powerful systems for using artillery support. What the Soviets lacked in flexibility, they made up for in number of rocket launchers, guns and mortars. The Germans never achieved the kind of fire concentrations their enemies were capable of by 1944.[107]

Also that November, Schindler was introduced to Itzhak Stern, an accountant for Schindler's fellow Abwehr agent Josef "Sepp" Aue, who had taken over Stern's formerly Jewish-owned place of employment as a Treuhander (trustee).[21] Property belonging to Polish Jews, including their possessions, places of business, and homes were seized by the Germans beginning immediately after the invasion, and Jewish citizens were stripped of their civil rights.[22] Schindler showed Stern the balance sheet of a company he was thinking of acquiring, an enamelware factory called Rekord Ltd[a] owned by a consortium of Jewish businessmen that had filed for bankruptcy earlier that year.[23] Stern advised him that rather than running the company as a trusteeship under the auspices of the Haupttreuhandstelle Ost (Main Trustee Office for the East), he should buy or lease the business, as that would give him more freedom from the dictates of the Nazis, including the freedom to hire more Jews.[24]