A comprehensively detailed work of definitive scholarship, "Blitzkrieg: From the Ground Up" by Niklas Zetterling (a military historian and researcher at the Swedish Defense College) is an examination of the German Blitzkrieg operations from Poland to Operation Barbarossa, as experienced by junior commanders and enlisted men, exploring why they were so successful.
You can visit the site on your own (highly recommended because you can go at your own pace, see what you want to see and have a much more meaningful experience) if you arrive before the guided tours start. Another option is to visit the Auschwitz II-Birkenau site first and then return after the guided tours finish to the first camp to avoid having to use the tour. The Auschwitz II-Birkenau site is open for visitors without the guide during the opening hours of the Memorial.
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.
It should be noted that early forms of Blitzkrieg were used in the First World War - most notably by General Alexei Brusilov in Russia's Brusilov Offensive of 1916 and Britain's General Allenby in the Battle of Megiddo in September 1918, making heavy use of armored vehicles, quick-strike cavalry attacks, and aerial bombardment to facilitate a swift and decisive victory. The Germans themselves used a variation of such tactics in their 1918 Spring Offensive.
Auschwitz Birkenau was the largest of the concentration camp complexes created by the Nazi German regime and was the one which combined extermination with forced labour. At the centre of a huge landscape of human exploitation and suffering, the remains of the two camps of Auschwitz I and Auschwitz II-Birkenau were inscribed on the World Heritage List as evidence of this inhumane, cruel and methodical effort to deny human dignity to groups considered inferior, leading to their systematic murder. The camps are a vivid testimony to the murderous nature of the anti-Semitic and racist Nazi policy that brought about the annihilation of over one million people in the crematoria, 90% of whom were Jews.
The origin of the term blitzkrieg is obscure. It was never used in the title of a military doctrine or handbook of the German army or air force, and no "coherent doctrine" or "unifying concept of blitzkrieg" existed. The term seems rarely to have been used in the German military press before 1939 and recent research at the German Militärgeschichtliches Forschungsamt at Potsdam found it in only two military articles from the 1930s. Both used the term to mean a swift strategic knock-out, rather than a radical new military doctrine or approach to war. The first article (1935) deals primarily with supplies of food and materiel in wartime. The term blitzkrieg is used with reference to German efforts to win a quick victory in the First World War but is not associated with the use of armoured, mechanised or air forces. It argued that Germany must develop self-sufficiency in food, because it might again prove impossible to deal a swift knock-out to its enemies, leading to a long war. In the second article (1938), launching a swift strategic knock-out is described as an attractive idea for Germany but difficult to achieve on land under modern conditions (especially against systems of fortification like the Maginot Line), unless an exceptionally high degree of surprise could be achieved. The author vaguely suggests that a massive strategic air attack might hold out better prospects but the topic is not explored in detail. A third relatively early use of the term in German occurs in Die Deutsche Kriegsstärke (German War Strength) by Fritz Sternberg, a Jewish, Marxist, political economist and refugee from the Third Reich, published in 1938 in Paris and in London as Germany and a Lightning War. Sternberg wrote that Germany was not prepared economically for a long war but might win a quick war ("Blitzkrieg"). He did not go into detail about tactics or suggest that the German armed forces had evolved a radically new operational method. His book offers scant clues as to how German lightning victories might be won.
Responding with alarm to Hitler’s rise, the Jewish community sought to defend their rights as Germans. For those Jews who felt themselves fully German and who had patriotically fought in World War I, the Nazification of German society was especially painful. Zionist activity intensified. “Wear it with pride,” journalist Robert Weltsch wrote in 1933 of the Jewish identity the Nazis had so stigmatized. Religious philosopher Martin Buber led an effort at Jewish adult education, preparing the community for the long journey ahead. Rabbi Leo Baeck circulated a prayer for Yom Kippur (the Day of Atonement) in 1935 that instructed Jews on how to behave: “We bow down before God; we stand erect before man.” Yet while few, if any, could foresee its eventual outcome, the Jewish condition was increasingly perilous and was expected to worsen.
The brick barracks were constructed in the autumn of 1941. The Germans originally intended the barracks to house 40 prisoners, but very often more than 700 would be placed in each of them. The total number of prisoners to each barrack depended on the number of transports arriving. The prisoners slept in 60 spaces, with three bunks in each space. Prisoners slept on straw spread over the wooden bunks. The barracks had earth floors and few sanitary facilities.
In addition to this camp, which has been fairly well-documented, the Nazis also briefly maintained a Gypsy (Roma and Sinti) camp. Although both prisoners and Nazis commented upon the musical skill and creativity of these inmates, little documentation exists of their musical production. This is also partially due to their isolation from other inmates, and their extremely harsh treatment by the SS, second only to what was meted out to the Jews in cruelty. Nonetheless, there are several references to an orchestra, as well as to less formal musical groups.
Schindler grew up in Svitavy, Moravia, and worked in several trades until he joined the Abwehr, the military intelligence service of Nazi Germany, in 1936. He joined the Nazi Party in 1939. Prior to the German occupation of Czechoslovakia in 1938, he collected information on railways and troop movements for the German government. He was arrested for espionage by the Czechoslovak government but was released under the terms of the Munich Agreement in 1938. Schindler continued to collect information for the Nazis, working in Poland in 1939 before the invasion of Poland at the start of World War II. In 1939, Schindler acquired an enamelware factory in Kraków, Poland, which employed at the factory's peak in 1944 about 1,750 workers, of whom 1,000 were Jews. His Abwehr connections helped Schindler protect his Jewish workers from deportation and death in the Nazi concentration camps. 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.