The Blitzkrieg was fundamentally about moving away from the tried and tested methods of modern warfare and creating a new, more effective doctrine. To that end, Hitler had given his full backing to Guderian. Ironically, he had got his idea for Blitzkrieg from two officers – one from France and one from Britain and he had copied and broadened what they had put on paper. In Britain and France, however, the cavalry regiments ruled supreme and they were adamant that the tanks would not get any influence in their armies. The High Commands of both countries were dominated by the old traditional cavalry regiments and their political pull was great. These were the type of officers despised by Hitler and he took to his Panzer officer, Guderian, over the old officers that were in the German Army (the Wehrmacht). 
As the tide of World War II turned against the Nazis, they began a systematic plan to eliminate or "liquidate" the ghettos they had established, by a combination of mass murder on the spot and transferring the remaining residents to extermination camps. When the Nazis attempted to liquidate the Warsaw Ghetto on April 13, 1943, the remaining Jews fought back in what has become known as the Warsaw Ghetto Uprising. The Jewish resistance fighters held out against the entire Nazi regime for 28 days, longer than many European countries had been able to withstand Nazi conquest.
The deportation of Jews to the ghettos culminated in the policy of extermination the Nazis called the "Final Solution to the Jewish Question", discussed by senior Nazi officials at the Wannsee Conference in Berlin in January 1942. As German forces captured territories in the East, all anti-Jewish measures were radicalized. Under the coordination of the SS, with directions from the highest leadership of the Nazi Party, killings were committed within Germany itself, throughout occupied Europe, and across all territories controlled by the Axis powers. Paramilitary death squads called Einsatzgruppen, in cooperation with Wehrmacht police battalions and local collaborators, murdered around 1.3 million Jews in mass shootings between 1941 and 1945. By mid-1942, victims were being deported from the ghettos in sealed freight trains to extermination camps where, if they survived the journey, they were killed in gas chambers. The killing continued until the end of World War II in Europe in May 1945.
As Nazi tyranny spread across Europe, the Germans and their collaborators persecuted and murdered millions of other people. Between two and three million Soviet prisoners of war were murdered or died of starvation, disease, neglect, or brutal treatment. The Germans targeted the non-Jewish Polish intelligentsia for killing, and deported millions of Polish and Soviet civilians for forced labor in Germany or in occupied Poland, where these individuals worked and often died under deplorable conditions.
Most of the Jewish ghettos of General Government were liquidated in 1942–1943, and their populations shipped to the camps for extermination.[349][350][t] About 42,000 Jews were shot during the Operation Harvest Festival on 3–4 November 1943.[351] At the same time, rail shipments arrived regularly from western and southern Europe at the extermination camps.[352] Few Jews were shipped from the occupied Soviet territories to the camps: the killing of Jews in this zone was mostly left in the hands of the SS, aided by locally recruited auxiliaries.[353][u]

To visit Auschwitz- Birkenau is a must. Everything is so good preserve and it learns you about the horris that hapeend to the poor people , woman and the small children. The blocks that shows you the glasses , hair and suitcases let you image how the people arrived there unknown what hell they are going to meet. Please visit these camps and tell all your friends to visit. we must learn so it will never happend again. I am takeing my brother and his family the November 2009. Been there 3 times already with different people. Since I visit auschwitz-Birkenau, Mathausen 9Austria)and Dachau (Germany), I cry each day thinking about the poor innocent people.

11 of Hitler’s deputies were given death sentences, including Goering, the most senior surviving Nazi. However he too committed suicide the night before he was due to hang. Others received prison terms. Albert Speer, Hitler's personal architect, was released in 1966 and spent his remaining years writing about the Nazi regime, donating most of his royalties to Jewish charities. Rudolph Hess committed suicide in prison in 1987. Many Nazis evaded justice altogether and were never tried.

On November 9-10, 1938, the attacks on the Jews became violent. Hershel Grynszpan, a 17-year-old Jewish boy distraught at the deportation of his family, shot Ernst vom Rath, the third secretary in the German Embassy in Paris, who died on November 9. Nazi hooligans used this assassination as the pretext for instigating a night of destruction that is now known as Kristallnacht (the night of broken glass). They looted and destroyed Jewish homes and businesses and burned synagogues. Many Jews were beaten and killed; 30,000 Jews were arrested and sent to concentration camps.
There are different methods of execution. People are shot by firing squads, killed by an "air hammer", and poisoned by gas in special gas chambers. Prisoners condemned to death by the Gestapo are murdered by the first two methods. The third method, the gas chamber, is employed for those who are ill or incapable of work and those who have been brought in transports especially for the purpose/Soviet prisoners of war, and, recently Jews.[333]
After becoming Chancellor of Germany (head of government) in 1933, Adolf Hitler ignored the Versailles Treaty provisions. Within the Wehrmacht (established in 1935) the command for motorised armored forces was named the Panzerwaffe in 1936. The Luftwaffe (the German air force) was officially established in February 1935, and development began on ground-attack aircraft and doctrines. Hitler strongly supported this new strategy. He read Guderian's 1937 book Achtung – Panzer! and upon observing armoured field exercises at Kummersdorf he remarked, "That is what I want – and that is what I will have."[51][52]
One element that was lacking from the German army in 1914 was the ability to move long distances quickly. Had the German army been mechanised at the outbreak of World War One, it is likely that the outcome of the war would have been very different. As things were then, the German army was unable to defeat its enemies decisively in the war's early battles, and reluctantly settled into trench warfare in late 1914.
In 1995, David Glantz stated that for the first time, blitzkrieg was defeated in summer and the opposing Soviet forces were able to mount a successful counter-offensive.[98] The Battle of Kursk ended with two Soviet counter-offensives and the revival of deep operations.[98] In the summer of 1944, the Red Army destroyed Army Group Centre in Operation Bagration, using combined-arms tactics for armour, infantry and air power in a coordinated strategic assault, known as deep operations, which led to an advance of 600 kilometres (370 mi) in six weeks.[106]
The British army took lessons from the successful infantry and artillery offensives on the Western Front in late 1918. To obtain the best co-operation between all arms, emphasis was placed on detailed planning, rigid control and adherence to orders. Mechanization of the army was considered a means to avoid mass casualties and indecisive nature of offensives, as part of a combined-arms theory of war.[35][36] The four editions of Field Service Regulations published after 1918 held that only combined-arms operations could create enough fire power to enable mobility on a battlefield. This theory of war also emphasized consolidation, recommending caution against overconfidence and ruthless exploitation.[37]
There have been protracted disputes over the perceived Christianization of the site. Pope John Paul II celebrated mass over the train tracks leading to Auschwitz II-Birkenau on 7 June 1979,[290] and called the camp "the Golgotha of our age", referring to the crucifixion of Jesus.[291] More controversy followed when Carmelite nuns founded a convent in 1984 in a former theater outside the camp's perimeter, near block 11 of Auschwitz I,[292] after which a local priest and some survivors erected a large cross—one that had been used during the pope's mass—behind block 11 to commemorate 152 Polish inmates shot by the Germans in 1941.[293][294] After a long dispute, Pope John Paul II intervened, and the nuns moved the convent elsewhere in 1993.[295] The cross remained, triggering the "War of the Crosses", as more crosses were erected to commemorate Christian victims, despite international objections. The Polish government and Catholic Church eventually agreed to remove all but the original.[296]

Uprisings broke out in some extermination camps. The few remaining Jews kept alive to dispose of bodies and sort possessions realised the number of transportees was reducing and they would be next. Civilian uprisings occurred across Poland as mainly young Jews, whose families had already been murdered, began to resist Nazi oppression. With reports of rebellion and mass murder in the British press, the situation in the camps could no longer be be ignored.
Tactically speaking, once the weakest area of defence is identified, tactical bombers would strike at logistical, communication, and supply targets while field and self-propelled artillery units struck at defence installations. These bombardments were then pre-ceded by probing attacks and smoke screens to conceal the main armoured spearhead, and once the main armoured force broke through the designated strike area, motorized infantry would then fan out behind the armoured spearhead to capture or destroy any enemy forces encircled by panzer and mechanized infantry units or tactically important objectives like bridges, airfields, supply depots, rail yards, naval ports, anti-aircraft batteries, and radar installations.
Birkenau was subdivided into several sections, fairly isolated from one another, and each supporting its own unique cultural scene.  There was a men’s camp, a women’s camp, and two ‘family camps’, one for Roma and Sinti, and the other for Jews brought from Theresienstadt.  Both ‘family camps’ were eventually liquidated, but before then the inmates were allowed to live in relatively better conditions than the other inmates.  They were not required to have their heads shaved, at least initially were given more generous rations and various other 'privileges', and above all were allowed to stay together as families.  Each of these mini-camps supported its own band, as well as a variety of singing, performing and instrumental groups.
In 1939, shortly after the war began, the Germans initiated the T4 Program—framed euphemistically as a “euthanasia” program—for the murder of intellectually or physically disabled and emotionally disturbed Germans who by their very existence violated the Nazi ideal of Aryan supremacy. They were termed “life unworthy of life.” An economic justification was also employed as these Germans were considered “useless eaters.” The Nazis pioneered the use of gas chambers and mass crematoria under this program. The murder of the disabled was the training ground for key personnel who were to later staff the death camps of Aktion Reinhard. The German public protested these murders. The Roman Catholic bishop of Münster, Clemens August, Graf von Galen, preached against them, and the T4 program was formally halted. Nonetheless, the murder and sterilization of these German “Aryans” continued secretly throughout the war.
Transportation between camps was often carried out in freight cars with prisoners packed tightly. Long delays would take place; prisoners might be confined in the cars on sidings for days.[190] In mid-1942 work camps began requiring newly arrived prisoners to be placed in quarantine for four weeks.[191] Prisoners wore colored triangles on their uniforms, the color of the triangle denoting the reason for their incarceration. Red signified a political prisoner, Jehovah's Witnesses had purple triangles, "asocials" and criminals wore black and green. Badges were pink for gay men and yellow for Jews.[192] Jews had a second yellow triangle worn with their original triangle, the two forming a six-pointed star.[193][194] In Auschwitz, prisoners were tattooed with an identification number on arrival.[195]
Schindler's ties with the Abwehr and his connections in the Wehrmacht and its Armaments Inspectorate enabled him to obtain contracts to produce enamel cookware for the military.[31] These connections also later helped him protect his Jewish workers from deportation and death.[32] As time went on, Schindler had to give Nazi officials ever larger bribes and gifts of luxury items obtainable only on the black market to keep his workers safe.[33] Bankier, a key black market connection, obtained goods for bribes as well as extra materials for use in the factory.[34] Schindler himself enjoyed a lavish lifestyle and pursued extramarital relationships with his secretary, Viktoria Klonowska, and Eva Kisch Scheuer, a merchant specialising in enamelware from DEF.[35] Emilie Schindler visited for a few months in 1940 and moved to Kraków to live with Oskar in 1941.[36][37]