Prior to the German offensive in May, Winston Churchill had said "Thank God for the French Army".[89] That same French army collapsed after barely two months of fighting. This was in shocking contrast to the four years of trench warfare they had engaged in during the First World War. The French president of the Ministerial Council, Reynaud, attributed the collapse in a speech on 21 May 1940:
The Nazis regarded the Slavs as subhuman, or Untermenschen.[426] In a secret memorandum dated 25 May 1940, Himmler stated that it was in German interests to foster divisions between the ethnic groups in the East. He wanted to restrict non-Germans in the conquered territories to schools that would only teach them how to write their own name, count up to 500, and obey Germans.[427][y] In November 1939 German planners called for "the complete destruction" of all Poles[430] and resettlement of the land by German colonists.[431] The Polish political leadership was the target of a campaign of murder (Intelligenzaktion and AB-Aktion).[432] Between 1.8 and 1.9 million non-Jewish Polish citizens perished at German hands during the course of the war; about four-fifths were ethnic Poles and the rest Ukrainians and Belarusians.[410] At least 200,000 died in concentration camps, around 146,000 in Auschwitz. Others died in massacres or in uprisings such as the Warsaw Uprising, where 120,000–200,000 were killed.[433] During the occupation, the Germans adopted a policy of restricting food and medical services, as well as degrading sanitation and public hygiene.[434] The death rate rose from 13 per 1000 before the war to 18 per 1000 during the war.[435] Around 6 million of World War II victims were Polish citizens; half the death toll were Jews.[436] Over the course of the war Poland lost 20 percent of its pre-war population.[436] Over 90 percent of the death toll came through non-military losses, through various deliberate actions by Germany and the Soviet Union.[433] Polish children were also kidnapped by Germans to be "Germanized", with perhaps as many as 200,000 children stolen from their families.[437]
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.
Once Germany took over Poland in 1939, it created forced-labor camps. Thousands of prisoners died from working conditions, exhaustion, and starvation. After the outbreak of World War II, the number of concentration camps increased exponentially. The number of prisoners of war camps also rose, but after the first years of the war most were converted into concentration camps. Nazis forcibly relocated Jews from ghettos to concentration camps.
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.
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]

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.

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."
The understanding of operations in Poland has shifted considerably since the Second World War. Many early postwar histories incorrectly attribute German victory to "enormous development in military technique which occurred between 1918 and 1940", incorrectly citing that "Germany, who translated (British inter-war) theories into action...called the result Blitzkrieg." More recent histories identify German operations in Poland as relatively cautious and traditional. Matthew Cooper wrote that

Eight hundred to a thousand people were crammed into the superimposed compartments of each barracks. Unable to stretch out completely, they slept there both lengthwise and crosswise, with one man's feet on another's head, neck, or chest. Stripped of all human dignity, they pushed and shoved and bit and kicked each other in an effort to get a few more inches' space on which to sleep a little more comfortably. For they did not have long to sleep.[122]
Oscar Schindler rose to the highest level of humanity, walked through the bloody mud of the Holocaust without soiling his soul, his compassion, his respect for human life -  and gave his Jews a second chance at life. He miraculously managed to do it and pulled it off by using the very same talents that made him a war profiteer - his flair for presentation, bribery, and grand gestures.

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."
His middle-class Catholic family belonged to the German-speaking community in the Sudetenland. The young Schindler, who attended German grammar school and studied engineering, was expected to follow in the footsteps of his father and  take charge of the family farm-machinery plant. Some of Schindler’s schoolmates and childhood neighbors were Jews, but with none of them did he develop an intimate or lasting friendship. Like most of the German-speaking youths of the Sudetenland, he subscribed to Konrad Henlein’s Sudeten German Party, which strongly supported the Nazi Germany and actively strove for the dismemberment of Czechoslovakia and their annexation to Germany . When the Sudetenland was incorporated into Nazi Germany in 1938, Schindler became a formal member of the Nazi party.
After the SS re-designated Plaszow as a concentration camp in August 1943, Schindler persuaded the SS to convert Emalia into a subcamp of Plaszow. In addition to the approximately 1,000 Jewish forced laborers registered as factory workers, Schindler permitted 450 Jews working in other nearby factories to live at Emalia as well. This saved them from the systematic brutality and arbitrary murder that was part of daily life in Plaszow.
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.
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 Germans required each ghetto to be run by a Judenrat, or Jewish council.[205] Councils were responsible for a ghetto's day-to-day operations, including distributing food, water, heat, medical care, and shelter. The Germans also required councils to confiscate property, organize forced labor, and, finally, facilitate deportations to extermination camps.[206] The councils' basic strategy was one of trying to minimize losses, by cooperating with German authorities, bribing officials, and petitioning for better conditions or clemency.[207]
The enormous might of Hitler’s Wehrmacht in 1941 lay in the quality of its personnel, its optimized organizational decisions (regarding operations in tank groups, air fleets and other formations), its top-notch operational art and tactics and in the fact that many of its weapons systems and military technologies were well matched to the blitzkrieg’s objectives.
The superior race was the "Aryans," the Germans. The word Aryan, "derived from the study of linguistics, which started in the eighteenth century and at some point determined that the Indo-Germanic (also known as Aryan) languages were superior in their structures, variety, and vocabulary to the Semitic languages that had evolved in the Near East. This judgment led to a certain conjecture about the character of the peoples who spoke these languages; the conclusion was that the 'Aryan' peoples were likewise superior to the 'Semitic' ones" (Leni Yahil, The Holocaust: The Fate of European Jewry, New York: Oxford University Press, 1990, p. 36).
Initially Göth's plan was that all the factories, including Schindler's, should be moved inside the camp gates.[52] However, Schindler, with a combination of diplomacy, flattery, and bribery, not only prevented his factory from being moved, but convinced Göth to allow him to build (at Schindler's own expense) a subcamp at Emalia to house his workers plus 450 Jews from other nearby factories. There they were safe from the threat of random execution, were well fed and housed, and were permitted to undertake religious observances.[53][54]