In spite of efforts to prepare the country militarily, the economy could not sustain a lengthy war of attrition. A strategy was developed based on the tactic of Blitzkrieg ("lightning war"), which involved using quick coordinated assaults that avoided enemy strong points. Attacks began with artillery bombardment, followed by bombing and strafing runs. Next the tanks would attack and finally the infantry would move in to secure the captured area. Victories continued through mid-1940, but the failure to defeat Britain was the first major turning point in the war. The decision to attack the Soviet Union and the decisive defeat at Stalingrad led to the retreat of the German armies and the eventual loss of the war. The total number of soldiers who served in the Wehrmacht from 1935 to 1945 was around 18.2 million, of whom 5.3 million died.
Officials and lawyers in the Third Reich were also intrigued by anti-miscegenation statutes, because the policing of sex was necessary to cleanse the Aryan race. Hitler, who had been largely asexual during his crucial years as a failing painter in Vienna, was obsessed with sex and blood. The United States at the time was a global leader in banning mixed marriages, going so far as to criminally punish those who defied the law. (Many of these laws were not struck down in the United States until the Supreme Court’s 1967 Loving v. Virginia case.) The Prussian Memorandum explicitly invoked U.S. laws that promoted segregation to maintain racial purity, and the sexual morality of white women in particular. Similarly, the third Nuremburg Law expressly forbid marriages and extra-marital relations between Germans and Jews, and promised hard labor in prison for law-breakers. The more one reads about the American and Nazi fixation on race, the more evident it becomes that at the very core of racist ideology is a primal fear of sexual inadequacy, of pollution, of mixing. Racial nationalism, the ideology of the Nazis, took this idea to its logical end.
Another important figure in pre-Nazi völkisch thinking was Wilhelm Heinrich Riehl, whose work—Land und Leute (Land and People, written between 1857 and 1863)—collectively tied the organic German Volk to its native landscape and nature, a pairing which stood in stark opposition to the mechanical and materialistic civilization which was then developing as a result of industrialization. Geographers Friedrich Ratzel and Karl Haushofer borrowed from Riehl's work as did Nazi ideologues Alfred Rosenberg and Paul Schultze-Naumburg, both of whom employed some of Riehl's philosophy in arguing that "each nation-state was an organism that required a particular living space in order to survive". Riehl's influence is overtly discernible in the Blut und Boden (Blood and Soil) philosophy introduced by Oswald Spengler, which the Nazi agriculturalist Walther Darré and other prominent Nazis adopted.
The reality of where we were, struck home fairly quickly. I was stationed near crematorium number four, and we witnessed the columns of unsuspecting women and children entering the gate of the crematorium; they would have been dead within half an hour. When the Hungarian Jews arrived they had the gas chambers going day and night. How can you wrap your imagination round that? I still can’t.
From 1928 onward, the Nazi Party's growth into a large national political movement was dependent on middle class support, and on the public perception that it "promised to side with the middle classes and to confront the economic and political power of the working class."  The financial collapse of the white collar middle-class of the 1920s figures much in their strong support of Nazism. Although the Nazis continued to make appeals to "the German worker," historian Timothy Mason concludes that "Hitler had nothing but slogans to offer the working class."
Although the factory had been expected to begin production in 1943, shortages of labor and raw materials meant start-up had to be postponed repeatedly. The Allies bombed the plant in 1944 on 20 August, 13 September, 18 December, and again on 26 December. On 19 January 1945, the SS ordered that the site be evacuated, sending 9,000 inmates on a death march to another Auschwitz subcamp at Gliwice. The plant had almost been ready to commence production. From Gliwice, prisoners were taken by rail in open freight wagons to Buchenwald and Mauthausen concentration camps. The 800 inmates who had been left behind in the Monowitz hospital were liberated on 27 January 1945 by the 1st Ukrainian Front of the Red Army.
Otto Frank gave the diary to the historian Annie Romein-Verschoor, who tried unsuccessfully to have it published. She then gave it to her husband Jan Romein, who wrote an article about it, titled "Kinderstem" ("A Child's Voice"), which was published in the newspaper Het Parool on 3 April 1946. He wrote that the diary "stammered out in a child's voice, embodies all the hideousness of fascism, more so than all the evidence at Nuremberg put together." His article attracted attention from publishers, and the diary was published in the Netherlands as Het Achterhuis (The Annex) in 1947, followed by five more printings by 1950.
Between 1933 and the fall of Nazi Germany in 1945, more than 3.5 million Germans were forced to spend time in concentration camps and prisons for political reasons, and approximately 77,000 Germans were executed for one or another form of resistance by Special Courts, courts-martial, and the civil justice system. Many of these Germans had served in government, the military, or in civil positions, which enabled them to engage in subversion and conspiracy against the Nazis.