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.

On January 20, 1942, Reinhard Heydrich convened the Wannsee Conference at a lakeside villa in Berlin to organize the “final solution to the Jewish question.” Around the table were 15 men representing government agencies necessary to implement so bold and sweeping a policy. The language of the meeting was clear, but the meeting notes were circumspect:

In early 1942, mass exterminations were moved to two provisional gas chambers (the "red house" and "white house", known as bunkers 1 and 2) in Auschwitz II, while the larger crematoria (II, III, IV, and V) were under construction. Bunker 2 was temporarily reactivated from May to November 1944, when large numbers of Hungarian Jews were gassed.[161] In summer 1944 the combined capacity of the crematoria and outdoor incineration pits was 20,000 bodies per day.[162] A planned sixth facility—crematorium VI—was never built.[163] Prisoners were transported from all over German-occupied Europe by rail, arriving in daily convoys.[164] By July 1942, the SS were conducting "selections". Incoming Jews were segregated; those deemed able to work were sent to the selection officer's right and admitted into the camp, and those deemed unfit for labor were sent to the left and immediately gassed.[165] The group selected to die, about three-quarters of the total,[c] included almost all children, women with small children, the elderly, and all those who appeared on brief and superficial inspection by an SS doctor not to be fit for work.[167]
When a train carrying Jewish prisoners arrived “selections” would be conducted on the railroad platform, or ramp. Newly arrived persons classified by the SS physicians as unfit for labor were sent to the gas chambers: these included the ill, the elderly, pregnant women and children. In most cases, 70-75% of each transport was sent to immediate death. These people were not entered in the camp records; that is, they received no serial numbers and were not registered, and this is why it is possible only to estimate the total number of victims.
In the aftermath of the Holocaust, many of the survivors found shelter in displaced persons  camps administered by the Allied powers. Between 1948 and 1951, almost 700,000 Jews emigrated to Israel, including 136,000 Jewish displaced persons from Europe. Other Jewish displaced persons emigrated to the United States and other nations. The last camp for Jewish displaced persons closed in 1957.
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 majority—probably about 90%—of the victims of Auschwitz Concentration Camp died in Birkenau. This means approximately a million people. The majority, more than nine out of every ten, were Jews. A large proportion of the more than 70 thousand Poles who died or were killed in the Auschwitz complex perished in Birkenau. So did approximately 20 thousand Gypsies, in addition to Soviet POWs and prisoners of other nationalities. 
From the overpass, the road leads directly to the Gate of Death. The railroad spur line that goes through the gate house begins on the left side of the gate, about a quarter of a mile away, and curves around until it forms a straight line in front of the gate. Trains coming from the west entered the Birkenau camp from tracks on the left side of the gate, as you are facing it, and did not pass the railroad station in the town of Auschwitz. Trains coming from the opposite direction passed the train station in Auschwitz and then entered the camp on the spur line. The train tracks end only a few yards from two of the gas chambers inside the Birkenau camp.
Auschwitz II, located in the village of Birkenau, or Brzezinka, just outside OÅ›wiÄ™cim, was constructed in 1941 on the order of Heinrich Himmler (1900-45), commander of the “Schutzstaffel” (or Select Guard/Protection Squad, more commonly known as the SS), which operated all Nazi concentration camps and death camps. Birkenau, the biggest of the Auschwitz facilities, could hold some 90,000 prisoners. It also housed a group of bathhouses where countless people were gassed to death, and crematory ovens where bodies were burned. The majority of Auschwitz victims died at Birkenau.More than 40 smaller facilities, called subcamps, dotted the landscape and served as slave-labor camps. The largest of these subcamps, Monowitz, also known as Auschwitz III, began operating in 1942 and housed some 10,000 prisoners.
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 possible final remnant will, since it will undoubtedly consist of the most resistant portion, have to be treated accordingly because it is the product of natural selection and would, if released, act as the seed of a new Jewish revival (see the experience of history.) In the course of the practical execution of the final solution, Europe will be combed through from west to east. Germany proper, including the Protectorate of Bohemia and Moravia, will have to be handled first due to the housing problem and additional social and political necessities. The evacuated Jews will first be sent, group by group, to so-called transit ghettos, from which they will be transported to the East.[256]

To concentrate and monitor the Jewish population as well as to facilitate later deportation of the Jews, the Germans and their collaborators created ghettos, transit camps, and forced-labor camps for Jews during the war years. The German authorities also established numerous forced-labor camps, both in the so-called Greater German Reich and in German-occupied territory, for non-Jews whose labor the Germans sought to exploit.

Birkenau is a very large place and thus it is easy to miss a small portion of camp. In this respect it is well worth visiting the small exhibit located behind Canada - the storehouses where victims belongings were kept. The exhibition is to be found in what was known as the Sauna. Inmates were disinfected here, their hair cut, and they were stripped of their belongings. The exhibition is simple and moving. There is also a room devoted to specific families caught up in the tragedy. Smiling holiday photographs are in contradiction to the madness of what was in store.

Oscar Schindler was all that stood between them and death at the hands of the Nazis. A man all too human, full of flaws like the rest of us. The unlikeliest of all role models - a Nazi, a womanisor, a war profiteer. An ordinary man who answered the call of conscience. Even in the worst of circumstances Oscar Schindler did extraordinary things, matched by no one. He remained true to his Jews, the workers he referred to as my children. He kept the SS out and everyone alive.
Blitzkrieg was not a doctrine, or an operational scheme, or even a tactical system. In fact, it simply doesn’t exist, at least not in the way we usually think it does. The Germans never used the term Blitzkrieg in any precise sense, and almost never used it outside of quotations. It simply meant a rapid and decisive victory (lightning war)... The Germans didn’t invent anything new in the interwar period, but rather used new technologies like tanks and air and radio-controlled command to restore an old way of war that they still found to be valid, Bewegungskrieg.[118]

When we think of the crimes of Nazi doctors, what comes to mind are their cruel and sometimes fatal experiments… Yet when we turn to the Nazi doctors’ role in Auschwitz, it was not the experiments that were most significant. Rather, it was his participation in the killing process—indeed his supervision of Auschwitz mass murder from beginning to end. 1

The orders for the final evacuation and liquidation of the camp were issued in mid-January 1945. The Germans left behind in the main Auschwitz camp, Birkenau and in Monowitz about 7,000 sick or incapacitated who they did not expect would live for long; the rest, approximately 58,000 people, were evacuated by foot into the depths of the Third Reich.
Up to this point, Auschwitz accounted for only 11 percent of the victims of the 'Final Solution'. However, in August 1942, planning began for the construction of four large-scale gassing facilities. It appears from the plans that the first two gas chambers were adapted from mortuaries which, with the huge crematoria attached to them, were initially intended to cope with mortalities amongst the slave labor force in the camp, now approaching 100,000 and subject to a horrifying death rate. But from the autumn of 1942, it seems clear that the SS planners and civilian contractors were intending to build a mass-murder plant.
You find gripping and horrifying stories of Adolf Hitler and his most ruthless henchmen - men often seen as the very personifications of evil, like Rudolf Hoess, the SS Commandant of Auschwitz, the Nazi butcher Amon Goeth at Plaszow and Josef Mengele, The Angel Of Death. You may read about Hitler's wife, Eva Braun, or Admiral Wilhelm Canaris, Chief of the German Military Intelligence who was a dedicated anti-Nazi and held Hitler in utter contempt. He tried to put a stop to the crimes of war and genocide committed by the Nazis.
When he learned what had happened, Schindler at first managed to secure the release of the men from the Gross-Rosen camp.  He then proceeded to send his personal German secretary to Auschwitz to negotiate the release of the women. The latter managed to obtain the release of the Jewish women by promising to pay 7 RM daily per worker. This is the only recorded case in the history of the extermination camp that such a large group of people were allowed to leave alive while the gas chambers were still in operation.
German communists, socialists and trade unionists were among the earliest opponents of the Nazis[443] and among the first to be sent to concentration camps.[444] Before the invasion of the Soviet Union, Hitler issued the Commissar Order, which ordered the execution of all political commissars and Communist Party members captured.[445] Nacht und Nebel ("Night and Fog") was a directive of Hitler in December 1941, resulting in the disappearance of political activists throughout the German-occupied territories.[446]
Initially, Schindler was mostly interested in the money-making potential of the business and hired Jews because they were cheaper than Poles—the wages were set by the occupying Nazi regime.[38] Later he began shielding his workers without regard for cost.[39] The status of his factory as a business essential to the war effort became a decisive factor enabling him to help his Jewish workers. Whenever Schindlerjuden (Schindler Jews) were threatened with deportation, he claimed exemptions for them. He claimed wives, children, and even people with disabilities were necessary mechanics and metalworkers.[39] On one occasion, the Gestapo came to Schindler demanding that he hand over a family that possessed forged identity papers. "Three hours after they walked in," Schindler said, "two drunk Gestapo men reeled out of my office without their prisoners and without the incriminating documents they had demanded."[40]