The Auschwitz Birkenau camp complex comprises 155 brick and wooden structures (57 in Auschwitz and 98 in Birkenau) and about 300 ruins. There are also ruins of gas chambers and crematoria in Birkenau, which were dynamited in January 1945. The overall length of fencing supported by concrete poles is more than 13 km. Individual structures of high historical significance, such as railway sidings and ramps, food stores and industrial buildings, are dispersed in the immediate setting of the property. These structures, along with traces in the landscape, remain poignant testimonies to this tragic history.

After this night, the German government supported dozens of laws and decrees that took away Jews property and livelihood. By the end of the year, Jews were prohibited from attending school. One billion reichsmarks of Jewish property was seized as collective punishment against the nation’s Jews for the murder of von Rath. Those able to flee the country did. In the year after Kristallnact, more than 100,000 Jews left Germany as the situation deteriorated.
Estimates of Jewish participation in partisan units throughout Europe range from 20,000 to 100,000.[323] In the occupied Polish and Soviet territories, thousands of Jews fled into the swamps or forests and joined the partisans,[324] although the partisan movements did not always welcome them.[325] An estimated 20,000 to 30,000 joined the Soviet partisan movement.[326] One of the famous Jewish groups was the Bielski partisans in Belarus, led by the Bielski brothers.[324] Jews also joined Polish forces, including the Home Army. According to Timothy Snyder, "more Jews fought in the Warsaw Uprising of August 1944 than in the Warsaw Ghetto Uprising of April 1943".[327][r]
Germany invaded Norway and Denmark on 9 April 1940, during Operation Weserübung. Denmark was overrun so quickly that there was no time for an organized resistance to form. Consequently, the Danish government stayed in power and the Germans found it easier to work through it. Because of this, few measures were taken against the Danish Jews before 1942.[157] By June 1940 Norway was completely occupied.[158] In late 1940, the country's 1,800 Jews were banned from certain occupations, and in 1941 all Jews had to register their property with the government.[159] On 26 November 1942, 532 Jews were taken by police officers, at four o'clock in the morning, to Oslo harbour, where they boarded a German ship. From Germany they were sent by freight train to Auschwitz. According to Dan Stone, only nine survived the war.[160]

Although not ordered to take part, psychiatrists and many psychiatric institutions were involved in the planning and carrying out of Aktion T4 at every stage.[103] After protests from the German Catholic and Protestant churches, Hitler ordered the cancellation of the T4 program in August 1941,[104] although the disabled and mentally ill continued to be killed until the end of the war.[102] The medical community regularly received bodies and body parts for research. Eberhard Karl University received 1,077 bodies from executions between 1933 and 1945. The neuroscientist Julius Hallervorden received 697 brains from one hospital between 1940 and 1944: "I accepted these brains of course. Where they came from and how they came to me was really none of my business."[105]
Guderian argued that the tank was the decisive weapon of war. "If the tanks succeed, then victory follows", he wrote. In an article addressed to critics of tank warfare, he wrote "until our critics can produce some new and better method of making a successful land attack other than self-massacre, we shall continue to maintain our beliefs that tanks—properly employed, needless to say—are today the best means available for land attack." Addressing the faster rate at which defenders could reinforce an area than attackers could penetrate it during the First World War, Guderian wrote that "since reserve forces will now be motorized, the building up of new defensive fronts is easier than it used to be; the chances of an offensive based on the timetable of artillery and infantry co-operation are, as a result, even slighter today than they were in the last war." He continued, "We believe that by attacking with tanks we can achieve a higher rate of movement than has been hitherto obtainable, and—what is perhaps even more important—that we can keep moving once a breakthrough has been made." Guderian additionally required that tactical radios be widely used to facilitate co-ordination and command.

Raphael Lemkin, a holocaust survivor who worked on the Nuremberg Trials, coined the term genocide and spent 4 years pushing for it to be added to international law. As Champetier de Ribes, the French Prosecutor at the Nuremberg Trials explained “This [was] a crime so monstrous, so undreamt of in history throughout the Christian era up to the birth of Hitlerism that the term ‘genocide’ has had to be coined to define it.” Ultimately, in 1948 The United Nations Convention on the Prevention and Punishment of Genocide was adopted, and it entered into force in 1951. The convention defined genocide in legal terms based on Lemkin’s work, and is the basis for genocide prevention efforts today.

Tested by the Germans during the Spanish Civil War in 1938 and against Poland in 1939, the blitzkrieg proved to be a formidable combination of land and air action. Germany’s success with the tactic at the beginning of World War II hinged largely on the fact that it was the only country that had effectively linked its combined forces with radio communications. The use of mobility, shock, and locally concentrated firepower in a skillfully coordinated attack paralyzed an adversary’s capacity to organize defenses, rather than attempting to physically overcome them, and then exploited that paralysis by penetrating to the adversary’s rear areas and disrupting its whole system of communications and administration. The tactics, as employed by the Germans, consisted of a splitting thrust on a narrow front by combat groups using tanks, dive bombers, and motorized artillery to disrupt the main enemy battle position at the Schwerpunkt. Wide sweeps by armoured vehicles followed, establishing the Kessel that trapped and immobilized enemy forces. Those tactics were remarkably economical of both lives and matériel, primarily for the attackers but also, because of the speed and short duration of the campaign, among the victims.

Concentration camps began to incarcerate ‘habitual criminals’ in addition to political prisoners. Goebbels stepped up anti-Semitic propaganda with a traveling exhibition which cast Jews as the enemy. Nearly half a million people attended. Some guessed worse would come. Winston Churchill criticised British relations with Germany, warning of ‘great evils of racial and religious intolerance’, though many colleagues complained of his ‘harping on’ about Jews.
In September 1939, the German army occupied the western half of Poland. German police soon forced tens of thousands of Polish Jews from their homes and into ghettoes, giving their confiscated properties to ethnic Germans (non-Jews outside Germany who identified as German), Germans from the Reich or Polish gentiles. Surrounded by high walls and barbed wire, the Jewish ghettoes in Poland functioned like captive city-states, governed by Jewish Councils. In addition to widespread unemployment, poverty and hunger, overpopulation made the ghettoes breeding grounds for disease such as typhus.
I visited both Auschwitz 1 and 2 Birkenau in November, it was a cold, grey, miserable day. As I walked around camp 2 I couldn't speak nor could my friend. The full horror and evidence of the past was right in front of me and I still found it difficult to process. Let us never forget all those people regardless of nationality, race or gender who died but let us remember they were all someones relation.
The site was first suggested as a concentration camp for Polish prisoners by SS-Oberführer Arpad Wigand, an aide to Erich von dem Bach-Zelewski, Higher SS and Police Leader for Silesia. After this part of Poland was annexed by Nazi Germany, Oświęcim (Auschwitz) was located administratively in Germany, in the Province of Upper Silesia, Regierungsbezirk Kattowitz, Landkreis Bielitz. Bach-Zelewski had been searching for a site to hold prisoners in the Silesia region, as the local prisons were filled to capacity. Richard Glücks, head of the Concentration Camps Inspectorate, sent former Sachsenhausen concentration camp commandant Walter Eisfeld to inspect the site, which housed 16 dilapidated one-story buildings that had served as an Austrian and later Polish Army barracks and a camp for transient workers.[3] German citizens were offered tax concessions and other benefits if they would relocate to the area.[33] By October 1943, more than 6,000 Reich Germans had arrived.[34] The Nazis planned to build a model modern residential area for incoming Germans, including schools, playing fields, and other amenities. Some of the plans went forward, including the construction of several hundred apartments, but many were never fully implemented.[35] Basic amenities such as water and sewage disposal were inadequate, and water-borne illnesses were commonplace.[36]
Blitzkrieg also has had some influence on subsequent militaries and doctrines. The Israel Defense Forces may have been influenced by blitzkrieg in creating a military of flexible armored spearheads and close air support. The 1990's United States theorists of " Shock and awe" claim blitzkrieg as a subset of strategies which they term "rapid dominance".
With the financial backing of several Jewish investors, including one of the owners, Abraham Bankier, Schindler signed an informal lease agreement on the factory on 13 November 1939 and formalised the arrangement on 15 January 1940.[b] He renamed it Deutsche Emailwarenfabrik (German Enamelware Factory) or DEF, and it soon became known by the nickname "Emalia".[25][26] He initially acquired a staff of seven Jewish workers (including Abraham Bankier, who helped him manage the company[27]) and 250 non-Jewish Poles.[28] At its peak in 1944, the business employed around 1,750 workers, a thousand of whom were Jews.[29] Schindler also helped run Schlomo Wiener Ltd, a wholesale outfit that sold his enamelware, and was leaseholder of Prokosziner Glashütte, a glass factory.[30]