Hitler had spent four years in World War One fighting a static war with neither side moving far for months on end. He was enthralled by Guderian’s plan that was based purely on speed and movement. When Guderian told Hitler that he could reach the French coast in weeks if an attack on France was ordered, fellow officers openly laughed at him. The German High Command told Hitler that his “boast” was impossible. General Busch said to Guderian, “Well, I don’t think that you’ll cross the River Meuse in the first place.” The River Meuse was considered France’s first major line of defence and it was thought of as being impossible to cross in a battle situation.
Soviet civilian populations in the occupied areas were heavily persecuted. Villages throughout the Soviet Union were destroyed by German troops. Germans rounded up civilians for forced labor in Germany and caused famine by taking foodstuffs. In Belarus, Germany imposed a regime that deported some 380,000 people for slave labor and killed hundreds of thousands of civilians. Over 600 villages had their entire populations killed, and at least 5,295 Belarusian settlements were destroyed by the Germans. According to Timothy Snyder, of "the nine million people who were in the territory of Soviet Belarus in 1941, some 1.6 million were killed by the Germans in actions away from battlefields, including about 700,000 prisoners of war, 500,000 Jews, and 320,000 people counted as partisans (the vast majority of whom were unarmed civilians)". The United States Holocaust Memorial Museum has estimated that 3.3 million of 5.7 million Soviet POWs died in German custody. The death rates decreased as the POWs were needed to help the German war effort; by 1943, half a million had been deployed as slave labor.
The main camp population grew from 18,000 in December 1942 to 30,000 in March 1943. In July or August 1941, Himmler briefed Höss about the 'Final Solution'. On September 3th, 1941, Soviet POWs at the Auschwitz main camp were used in trials of the poison gas Zyklon-B. This poison gas was produced by the German company "Degesch" (Deutsche Gesellschaft zur Schädlingsbekämpfung). The were gassed in underground cells in Block 11. After this trial, a gas chamber was rigged-up just outside the main camp and in February 1942, two temporary gas chambers opened at Birkenau. The crematories were built by the German company "Topf & son" located at Erfurt.
Infiltration tactics invented by the German Army during the First World War became the basis for later tactics. German infantry had advanced in small, decentralised groups which bypassed resistance in favour of advancing at weak points and attacking rear-area communications. This was aided by co-ordinated artillery and air bombardments, and followed by larger infantry forces with heavy guns, which destroyed centres of resistance. These concepts formed the basis of the Wehrmacht's tactics during the Second World War.
In late 1944, Plaszow and all its sub-camps had to be evacuated in face of the Russian advance. Most of the camp inmates—more than 20,000 men, women, and children—were sent to extermination camps. On receiving the order to evacuate, Schindler, who had approached the appropriate section in the Supreme Command of the Army (OKW), managed to obtain official authorization to continue production in a factory that he and his wife had set up in Brünnlitz, in their native Sudetenland. The entire work force from Zablocie—to which were furtively added many new names from the Plaszow camp—was supposed to move to the new factory site. However, instead of being brought to Brünnlitz, the 800 men—among them 700 Jews—and the 300 women on Schindler’s list were diverted to Gross-Rosen and to Auschwitz, respectively.
The United States Holocaust Memorial Museum defines the Holocaust as the "systematic, bureaucratic, state-sponsored persecution and murder of six million Jews by the Nazi regime and its collaborators", distinguishing between the Holocaust and the targeting of other groups during "the era of the Holocaust". According to Yad Vashem, Israel's Holocaust memorial, most historians regard the start of the "Holocaust era" as January 1933, when Hitler was named Chancellor of Germany. Other victims of the Holocaust era include those viewed as inferior, including for reasons of race or ethnicity (such as the Roma, ethnic Poles, Russians, and the disabled); and those targeted because of their beliefs or behavior (such as Jehovah's Witnesses, communists, and homosexuals). Hitler came to see the Jews as "uniquely dangerous to Germany", according to Peter Hayes, "and therefore uniquely destined to disappear completely from the Reich and all territories subordinate to it". The persecution and murder of other groups was much less consistent. For example, he writes, the Nazis regarded the Slavs as "sub-human", but their treatment consisted of "enslavement and gradual attrition", while "some Slavs—Slovaks, Croats, Bulgarians, some Ukrainians—[were] allotted a favored place in Hitler's New Order".
The rioting was triggered by the assassination of Ernst vom Rath, a German diplomat in Paris, by a Polish Jewish teenager, Herschel Grynszpan, on November 7th. Grynszpan did not attempt to escape and claimed that the assassination was motivated by the persecution of the Jewish people. Despite being attended to by Hitler’s personal physician, vom Rath died two days later.
Although effective in quick campaigns against Poland and France, mobile operations could not be sustained by Germany in later years. Strategies based on manoeuvre have the inherent danger of the attacking force overextending its supply lines, and can be defeated by a determined foe who is willing and able to sacrifice territory for time in which to regroup and rearm, as the Soviets did on the Eastern Front (as opposed to, for example, the Dutch who had no territory to sacrifice). 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 and blockade. 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.
Some Auschwitz prisoners were subjected to inhumane medical experimentation. The chief perpetrator of this barbaric research was Josef Mengele (1911-79), a German physician who began working at Auschwitz in 1943. Mengele, who came to be known as the “Angel of Death,” performed a range of experiments on detainees. For example, in an effort to study eye color, he injected serum into the eyeballs of dozens of children, causing them excruciating pain. He also injected chloroform into the hearts of twins, to determine if both siblings would die at the same time and in the same manner.
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). 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. 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. 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.