While the ideologues of Nazism, much like those of Stalinism, abhorred democratic or parliamentary governance as practiced in the United States or Britain, their differences are substantial. An epistemic crisis occurs when one tries to synthesize and contrast Nazism and Stalinism as two-sides of the same coin with their similarly tyrannical leaders, state-controlled economies and repressive police structures. Namely, while they share a common thematic political construction, they are entirely inimical to one another in their worldviews and when more carefully analysed against one another on a one-to-one level, an "irreconcilable asymmetry" results.[276]

The metaphor of war encouraged the inhumanity of the S.S. officers, which they called toughness; licensed physical violence against prisoners; and accounted for the military discipline that made everyday life in the K.L. unbearable. Particularly hated was the roll call, or Appell, which forced inmates to wake before dawn and stand outside, in all weather, to be counted and recounted. The process could go on for hours, Wachsmann writes, during which the S.S. guards were constantly on the move, punishing “infractions such as poor posture and dirty shoes.”

This January 27 marks the 65th anniversary of Auschwitz’s liberation by Soviet soldiers. The Nazis operated the camp between May 1940 and January 1945—and since 1947, the Polish government has maintained Auschwitz, which lies about 40 miles west of Krakow, as a museum and memorial. It is a Unesco World Heritage site, a distinction usually reserved for places of culture and beauty.

[W]hen we refer to all Kurdish fighters synonymously, we simply blur the fact that they have very different politics. . . right now, yes, the people are facing the Islamic State threat, so it’s very important to have a unified focus. But the truth is, ideologically and politically these are very, very different systems. Actually almost opposite to each other. —Dilar Dirik, “Rojava vs. the World,” February 2015

In the 1920s, the Nazi Party expanded beyond its Bavarian base. Catholic Bavaria maintained its right-wing nostalgia for a Catholic monarch;[citation needed] and Westphalia, along with working-class "Red Berlin", were always the Nazis' weakest areas electorally, even during the Third Reich itself. The areas of strongest Nazi support were in rural Protestant areas such as Schleswig-Holstein, Mecklenburg, Pomerania and East Prussia. Depressed working-class areas such as Thuringia also produced a strong Nazi vote, while the workers of the Ruhr and Hamburg largely remained loyal to the Social Democrats, the Communist Party of Germany or the Catholic Centre Party. Nuremberg remained a Nazi Party stronghold, and the first Nuremberg Rally was held there in 1927. These rallies soon became massive displays of Nazi paramilitary power and attracted many recruits. The Nazis' strongest appeal was to the lower middle-classes – farmers, public servants, teachers and small businessmen – who had suffered most from the inflation of the 1920s, so who feared Bolshevism more than anything else. The small business class was receptive to Hitler's antisemitism, since it blamed Jewish big business for its economic problems. University students, disappointed at being too young to have served in the War of 1914–1918 and attracted by the Nazis' radical rhetoric, also became a strong Nazi constituency. By 1929, the party had 130,000 members.[70]

The Allies received information about the murders from the Polish government-in-exile and Polish leadership in Warsaw, based mostly on intelligence from the Polish underground.[338][339] German citizens had access to information about what was happening, as soldiers returning from the occupied territories reported on what they had seen and done.[340] Historian Richard J. Evans states that most German citizens disapproved of the genocide.[341][h]
The Germans occupied Amsterdam in May 1940. In July 1942, German authorities and their Dutch collaborators began to concentrate Jews from throughout the Netherlands at Westerbork, a transit camp near the Dutch town of Assen, not far from the German border. From Westerbork, German officials deported the Jews to Auschwitz-Birkenau and Sobibor killing centers in German-occupied Poland.
The prisoners put up various forms of resistance to the tyranny of the camp. Resistance organisations helped inmates to obtain medicine and food, documented Nazi crimes, supported attempts to escape and sabotage, tried to put political prisoners into positions of responsibility, and prepared for an uprising. A total of 667 prisoners escaped from Auschwitz, but 270 of them were caught in the vicinity of the camp and immediately executed. The best-known escape was that of two Slovak Jews, Alfred Wetzler and Walter Rosenberg (Rudolf Vrba) (link in Czech). They managed to cross into Slovakia and to tell Jewish leaders - and through them the world - about the terrible reality of Auschwitz, about which they wrote an extensive report. On the 7th of October 1944, there was an uprising by the Sonderkommando working in the gas chambers. The prisoners managed to destroy one of the gas chambers, and thus to hinder the extermination process. All the rebels died. A group of young female prisoners was also executed for having smuggled gunpowder to the rebels from the factory in Monowitz.
When three refugee physicists confided to Einstein that the Nazis might be developing a new weapon—an atomic bomb—he decided to act. Despite his previous appeals for governments to dispense with the weapons of war, Einstein wrote to President Franklin Roosevelt in 1939 alerting him to "a new phenomenon that would...lead to the construction of bombs" and suggested that the United States accelerate its atomic weapons research program. Scholars debate the effect of this letter. Einstein signed it in 1939 and the Manhattan Project, the U.S. effort to build the bomb, began in 1941.
Some of the conquered territories were incorporated into Germany as part of Hitler's long-term goal of creating a Greater Germanic Reich. Several areas, such as Alsace-Lorraine, were placed under the authority of an adjacent Gau (regional district). The Reichskommissariate (Reich Commissariats), quasi-colonial regimes, were established in some occupied countries. Areas placed under German administration included the Protectorate of Bohemia and Moravia, Reichskommissariat Ostland (encompassing the Baltic states and Belarus), and Reichskommissariat Ukraine. Conquered areas of Belgium and France were placed under control of the Military Administration in Belgium and Northern France.[167] Belgian Eupen-Malmedy, which had been part of Germany until 1919, was annexed. Part of Poland was incorporated into the Reich, and the General Government was established in occupied central Poland.[168] The governments of Denmark, Norway (Reichskommissariat Norwegen), and the Netherlands (Reichskommissariat Niederlande) were placed under civilian administrations staffed largely by natives.[167][g] Hitler intended to eventually incorporate many of these areas into the Reich.[169] Germany occupied the Italian protectorate of Albania and the Italian governorate of Montenegro in 1943[170] and installed a puppet government in occupied Serbia in 1941.[171]
Working from these principles, Hitler carried his party from its inauspicious beginnings in a beer cellar in Munich to a dominant position in world politics 20 years later. The Nazi Party originated in 1919 and was led by Hitler from 1920. Through both successful electioneering and intimidation, the party came to power in Germany in 1933 and governed through totalitarian methods until 1945, when Hitler committed suicide and Germany was defeated and occupied by the Allies at the close of World War II.

By 1940, the CCI came under the control of the Verwaltung und Wirtschaftshauptamt Hauptamt (VuWHA; Administration and Business office) which was set up under Oswald Pohl.[25] Then in 1942, the CCI became Amt D (Office D) of the consolidated main office known as the SS-Wirtschafts-Verwaltungshauptamt (SS Economic and Administrative Department; WVHA) under Pohl.[25] In 1942, the SS built a network of extermination camps to systematically kill millions of prisoners by gassing. The extermination camps (Vernichtungslager) and death camps (Todeslager) were camps whose primary function was genocide. The Nazis themselves distinguished the concentration camps from the extermination camps.[26][27] The British intelligence service had information about the concentration camps, and in 1942 Jan Karski delivered a thorough eyewitness account to the government.