In Mein Kampf, Hitler stated that Lebensraum would be acquired in Eastern Europe, especially Russia.[132] In his early years as the Nazi leader, Hitler had claimed that he would be willing to accept friendly relations with Russia on the tactical condition that Russia agree to return to the borders established by the German–Russian peace agreement of the Treaty of Brest-Litovsk signed by Vladimir Lenin of the Russian Soviet Federated Socialist Republic in 1918 which gave large territories held by Russia to German control in exchange for peace.[131] In 1921, Hitler had commended the Treaty of Brest-Litovsk as opening the possibility for restoration of relations between Germany and Russia by saying:
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]
At the Birkenau camp, a five-minute shuttle-bus ride from the Auschwitz visitor center, the scene was so peaceful it was almost impossible to imagine the sea of stinking mud that survivors describe. The vast expanse was covered in neatly mowed grass. Flocks of Israeli teenagers in matching white-and-blue hoodies wandered from ruin to ruin. As I stood at the stairs leading down into the ruined gas chambers, a dozen Brits posed for a group picture on the steps of a memorial just a few yards away.
The enormous expansion of the camps resulted in an exponential increase in the misery of the prisoners. Food rations, always meagre, were cut to less than minimal: a bowl of rutabaga soup and some ersatz bread would have to sustain a prisoner doing heavy labor. The result was desperate black marketing and theft. Wachsmann writes, “In Sachsenhausen, a young French prisoner was battered to death in 1941 by an SS block leader for taking two carrots from a sheep pen.” Starvation was endemic and rendered prisoners easy prey for typhus and dysentery. At the same time, the need to keep control of so many prisoners made the S.S. even more brutal, and sadistic new punishments were invented. The “standing commando” forced prisoners to stand absolutely still for eight hours at a time; any movement or noise was punished by beatings. The murder of prisoners by guards, formerly an exceptional event in the camps, now became unremarkable.
Historians regard the equation of National Socialism as 'Hitlerism' as too simplistic since the term was used prior to the rise of Hitler and the Nazis and the different ideologies incorporated into Nazism were already well established in certain parts of German society before World War I.[27] The Nazis were strongly influenced by the post–World War I far-right in Germany, which held common beliefs such as anti-Marxism, anti-liberalism and antisemitism, along with nationalism, contempt for the Treaty of Versailles and condemnation of the Weimar Republic for signing the armistice in November 1918 which later led it to sign the Treaty of Versailles.[28] A major inspiration for the Nazis were the far-right nationalist Freikorps, paramilitary organizations that engaged in political violence after World War I.[28] Initially, the post–World War I German far-right was dominated by monarchists, but the younger generation, which was associated with Völkisch nationalism, was more radical and it did not express any emphasis on the restoration of the German monarchy.[29] This younger generation desired to dismantle the Weimar Republic and create a new radical and strong state based upon a martial ruling ethic that could revive the "Spirit of 1914" which was associated with German national unity (Volksgemeinschaft).[29]
What would it mean for a writer not to hide the horror? There is no mystery here, only a lack of interest. To understand what we are missing, consider the work of another young murdered Jewish chronicler of the same moment, Zalmen Gradowski. Like Frank’s, Gradowski’s work was written under duress and discovered only after his death—except that Gradowski’s work was written in Auschwitz, and you have probably never heard of it.
From 1921 to 1922, Hitler evoked rhetoric of both the achievement of Lebensraum involving the acceptance of a territorially reduced Russia as well as supporting Russian nationals in overthrowing the Bolshevik government and establishing a new Russian government.[131] Hitler's attitudes changed by the end of 1922, in which he then supported an alliance of Germany with Britain to destroy Russia.[131] Hitler later declared how far he intended to expand Germany into Russia:
When the Nazis seized power in 1933, roughly 67 percent of the population of Germany was Protestant, 33 percent was Roman Catholic, while Jews made up less than 1 percent.[405][406] According to 1939 census, 54 percent considered themselves Protestant, 40 percent Roman Catholic, 3.5 percent Gottgläubig (God-believing; a Nazi religious movement) and 1.5 percent nonreligious.[407]
Hitler's conception of the Aryan Herrenvolk ("Aryan master race") excluded the vast majority of Slavs from central and eastern Europe (i.e. Poles, Russians, Ukrainians, etc.). They were regarded as a race of men not inclined to a higher form of civilization, which was under an instinctive force that reverted them back to nature. The Nazis also regarded the Slavs as having dangerous Jewish and Asiatic, meaning Mongol, influences.[158] Because of this, the Nazis declared Slavs to be Untermenschen ("subhumans").[159] Nazi anthropologists attempted to scientifically prove the historical admixture of the Slavs who lived further East and leading Nazi racial theorist Hans Günther regarded the Slavs as being primarily Nordic centuries ago but he believed that they had mixed with non-Nordic types over time.[160] Exceptions were made for a small percentage of Slavs who the Nazis saw as descended from German settlers and therefore fit to be Germanised and considered part of the Aryan master race.[161] Hitler described Slavs as "a mass of born slaves who feel the need for a master".[162] The Nazi notion of Slavs as inferior served as a legitimization of their desire to create Lebensraum for Germans and other Germanic people in eastern Europe, where millions of Germans and other Germanic settlers would be moved into once those territories were conquered, while the original Slavic inhabitants were to be annihilated, removed or enslaved.[163] Nazi Germany's policy changed towards Slavs in response to military manpower shortages, forced it to allow Slavs to serve in its armed forces within the occupied territories in spite of the fact that they were considered "subhuman".[164]
Concentration camp, internment centre for political prisoners and members of national or minority groups who are confined for reasons of state security, exploitation, or punishment, usually by executive decree or military order. Persons are placed in such camps often on the basis of identification with a particular ethnic or political group rather than as individuals and without benefit either of indictment or fair trial. Concentration camps are to be distinguished from prisons interning persons lawfully convicted of civil crimes and from prisoner-of-war camps in which captured military personnel are held under the laws of war. They are also to be distinguished from refugee camps or detention and relocation centres for the temporary accommodation of large numbers of displaced persons.

The extravagant hopes of Nazism came to an end with Germany’s defeat in 1945, after nearly six years of war. To a certain extent World War II had repeated the pattern of World War I: great initial German military successes, the forging of a large-scale coalition against Germany as the result of German ambitions and behaviour, and the eventual loss of the war because of German overreaching. Nazism as a mass movement effectively ended on April 30, 1945, when Hitler committed suicide to avoid falling into the hands of Soviet troops completing the occupation of Berlin. Out of the ruins of Nazism arose a Germany that was divided until 1990. Remnants of National Socialist ideology remained in Germany after Hitler’s suicide, and a small number of Nazi-oriented political parties and other groups were formed in West Germany from the late 1940s, though some were later banned. In the 1990s gangs of neo-Nazi youths in eastern Germany staged attacks against immigrants, desecrated Jewish cemeteries, and engaged in violent confrontations with leftists and police.

In the course of the war, the camp was staffed by 7,000 members of the German Schutzstaffel (SS), approximately 12 percent of whom were later convicted of war crimes. Several, including camp commandant Rudolf Höss, were executed. The Allies did not act on early reports of atrocities at the camp, and their failure to bomb the camp or its railways remains controversial. At least 802 prisoners tried to escape from Auschwitz, 144 successfully, and on 7 October 1944 two Sonderkommando units, consisting of prisoners assigned to staff the gas chambers, launched a brief, unsuccessful uprising.
Heinrich Himmler's Schutzstaffel (SS) took full control of the police and the concentration camps throughout Germany in 1934–35.[5] Himmler expanded the role of the camps to hold so-called "racially undesirable elements", such as Jews, Gypsies/Romanis/Sintis, Serbs, Poles, disabled people, and criminals.[6][7][8] The number of people in the camps, which had fallen to 7,500, grew again to 21,000 by the start of World War II[9] and peaked at 715,000 in January 1945.[10]