After the outbreak of war, people from across Europe were deported to Mauthausen, which gradually developed into a system of several interconnected camps. During this phase, Mauthausen and Gusen were the concentration camps with the harshest imprisonment conditions and the highest mortality. Prisoners at the bottom of the camp hierarchy had barely any chance of surviving for long. Those who were ill or ‘useless’ to the SS were in constant danger of their lives. In 1941 the SS started to construct a gas chamber and other installations at Mauthausen for the systematic murder of large groups of people.
Since the beginning of the war, special SS units called Einsatzgruppen had carried out mass executions of Jews and others in conquered territories; these commandos rounded up entire villages, forced them to dig their own graves and shot them. The massacres took a toll even on the German firing squads, says Debórah Dwork, a Holocaust historian at Clark University in Worcester, Massachusetts, and co-author (with van Pelt) of Holocaust: A History. “It’s totally clear from Nazi documents,” she says, “that Germans were looking for a way to murder masses of people without having such a traumatic impact on the murderers.”
Addressing her diary entries to an imaginary friend she called Kitty, Anne Frank wrote about life in hiding, including her impressions of the other inhabitants of the Secret Annex, her feelings of loneliness and her frustration over the lack of privacy. While she detailed typical teenage issues such as crushes on boys, arguments with her mother and resentments toward her sister, Frank also displayed keen insight and maturity when she wrote about the war, humanity and her own identity. She also penned short stories and essays during her time in hiding.
In Autumn 1943, the camp administration was reorganized following a corruption scandal. By the end of 1943, the prisoner population of Auschwitz main camp, Birkenau, Monowitz and other sub-camps was over 80,000: 18,437 in the main camp, 49,114 in Birkenau, and 13,288 at Monowitz where I G Farben had its synthetic rubber plant. Up to 50,000 prisoners were scattered around 51 sub-camps such as Rajsko, an experimental agricultural station, and Gleiwitz, a coal mine (see The List of the Camps for a complete list of those sub-camps).

And for that purpose it is necessary not to think of the camps simply as a hellscape. Reading Wachsmann’s deeply researched, groundbreaking history of the entire camp system makes clear that Dachau and Buchenwald were the products of institutional and ideological forces that we can understand, perhaps all too well. Indeed, it’s possible to think of the camps as what happens when you cross three disciplinary institutions that all societies possess—the prison, the army, and the factory. Over the several phases of their existence, the Nazi camps took on the aspects of all of these, so that prisoners were treated simultaneously as inmates to be corrected, enemies to be combatted, and workers to be exploited. When these forms of dehumanization were combined, and amplified to the maximum by ideology and war, the result was the Konzentrationlager, or K.L.
The K.L. was defined from the beginning by its legal ambiguity. The camps were outside ordinary law, answerable not to judges and courts but to the S.S. and Himmler. At the same time, they were governed by an extensive set of regulations, which covered everything from their layout (including decorative flower beds) to the whipping of prisoners, which in theory had to be approved on a case-by-case basis by Himmler personally. Yet these regulations were often ignored by the camp S.S.—physical violence, for instance, was endemic, and the idea that a guard would have to ask permission before beating or even killing a prisoner was laughable. Strangely, however, it was possible, in the prewar years, at least, for a guard to be prosecuted for such a killing. In 1937, Paul Zeidler was among a group of guards who strangled a prisoner who had been a prominent churchman and judge; when the case attracted publicity, the S.S. allowed Zeidler to be charged and convicted. (He was sentenced to a year in jail.)
Selections for transit were a regular feature at Westerbork. Each Monday evening a train of about 20 cattle wagons would arrive at the camp. A list of one thousand people would be compiled by the Jewish council, which was made up of leaders of the community appointed by the Nazis and forced to carry out the Nazis’ orders. Early on the Tuesday morning those selected would assemble for deportation. After a roll call, they would enter the trains, at least 50 to each wagon, a bucket of water at one end and an empty one for use as a toilet at the other. The doors would close before the train departed for the long journey to the intended destination.
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.[225] 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.[226] 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.[150]
Agrarian policies were also important to the Nazis since they corresponded not just to the economy but to their geopolitical conception of Lebensraum as well. For Hitler, the acquisition of land and soil was requisite in moulding the German economy.[233] To tie farmers to their land, selling agricultural land was prohibited.[234] Farm ownership remained private, but business monopoly rights were granted to marketing boards to control production and prices with a quota system.[235] The "Hereditary Farm Law of 1933" established a cartel structure under a government body known as the Reichsnährstand (RNST) which determined "everything from what seeds and fertilizers were used to how land was inherited".[236]
For the first 5 years of her life, Anne lived with her parents and older sister, Margot, in an apartment on the outskirts of Frankfurt. After the Nazis seized power in 1933, Otto Frank fled to Amsterdam in the Netherlands, where he had business connections. The rest of the Frank family soon followed, with Anne being the last of the family to arrive in February 1934 after staying with her grandparents in Aachen.

^ In The Drowned and the Saved (1986), Levi wrote that the concentration camps represented the epitome of the totalitarian system: "[N]ever has there existed a state that was really "totalitarian" ... Never has some form of reaction, a corrective of the total tyranny, been lacking, not even in the Third Reich or Stalin's Soviet Union: in both cases, public opinion, the magistrature, the foreign press, the churches, the feeling for justice and humanity that ten or twenty years of tyranny were not enough to eradicate, have to a greater or lesser extent acted as a brake. Only in the Lager [camp] was the restraint from below nonexistent, and the power of these small satraps absolute."[277]
His strategy proved successful; at a special party congress on 29 July 1921, he replaced Drexler as party chairman by a vote of 533 to 1.[63] The committee was dissolved, and Hitler was granted nearly absolute powers as the party's sole leader.[63] He would hold the post for the remainder of his life. Hitler soon acquired the title Führer ("leader") and after a series of sharp internal conflicts it was accepted that the party would be governed by the Führerprinzip ("leader principle"). Under this principle, the party was a highly centralised entity that functioned strictly from the top down, with Hitler at the apex as the party's absolute leader. Hitler saw the party as a revolutionary organisation, whose aim was the overthrow of the Weimar Republic, which he saw as controlled by the socialists, Jews and the "November criminals" who had betrayed the German soldiers in 1918. The SA ("storm troopers", also known as "Brownshirts") were founded as a party militia in 1921 and began violent attacks on other parties.
The crisis led to war preparations by Britain, Czechoslovakia, and France (Czechoslovakia's ally). Attempting to avoid war, British Prime Minister Neville Chamberlain arranged a series of meetings, the result of which was the Munich Agreement, signed on 29 September 1938. The Czechoslovak government was forced to accept the Sudetenland's annexation into Germany. Chamberlain was greeted with cheers when he landed in London, saying the agreement brought "peace for our time".[70] The agreement lasted six months before Hitler seized the rest of Czech territory in March 1939.[71]
Life for the eight people in the small apartment, which Anne Frank referred to as the Secret Annex, was tense. The group lived in constant fear of being discovered and could never go outside. They had to remain quiet during daytime in order to avoid detection by the people working in the warehouse below. Anne passed the time, in part, by chronicling her observations and feelings in a diary she had received for her 13th birthday, a month before her family went into hiding.
The concentration camps make sense only if they are understood as products not of reason but of ideology, which is to say, of fantasy. Nazism taught the Germans to see themselves as a beleaguered nation, constantly set upon by enemies external and internal. Metaphors of infection and disease, of betrayal and stabs in the back, were central to Nazi discourse. The concentration camp became the place where those metaphorical evils could be rendered concrete and visible. Here, behind barbed wire, were the traitors, Bolsheviks, parasites, and Jews who were intent on destroying the Fatherland.
When the Nazis realized that the Russians were successfully pushing their way toward Germany in late 1944, they decided to start destroying evidence of their atrocities at Auschwitz. Himmler ordered the destruction of the crematoria and the human ashes were buried in huge pits and covered with grass. Many of the warehouses were emptied, with their contents shipped back to Germany.
Auschwitz, the largest and arguably the most notorious of all the Nazi death camps, opened in the spring of 1940. Its first commandant was Rudolf Höss (1900-47), who previously had helped run the Sachsenhausen concentration camp in Oranienburg, Germany. Auschwitz was located on a former military base outside OÅ›wiÄ™cim, a town in southern Poland situated near Krakow, one of the country’s largest cities. During the camp’s construction, nearby factories were appropriated and all those living in the area were forcibly ejected from their homes, which were bulldozed by the Nazis.
Many of the forced labour camps were satellite camps or sections of concentration camps. Auschwitz, in Poland, had over 40 such satellite camps. Inmates of the labour camps were kept in terrible conditions, with the intention by the Nazis that death would be the result. ‘Extermination by labour’ was a policy under which the Nazis could supply the German war effort, while also continuing to carry out ‘the final solution’.
Notions of white supremacy and Aryan racial superiority were combined in the 19th century, with white supremacists maintaining the belief that certain groups of white people were members of an Aryan "master race" that is superior to other races and particularly superior to the Semitic race, which they associated with "cultural sterility".[80] Arthur de Gobineau, a French racial theorist and aristocrat, blamed the fall of the ancien régime in France on racial degeneracy caused by racial intermixing, which he argued had destroyed the purity of the Aryan race, a term which he only reserved for Germanic people.[81][82] Gobineau's theories, which attracted a strong following in Germany,[81] emphasized the existence of an irreconcilable polarity between Aryan (Germanic) and Jewish cultures.[80]
Hitler had the final say in both domestic legislation and German foreign policy. Nazi foreign policy was guided by the racist belief that Germany was biologically destined to expand eastward by military force and that an enlarged, racially superior German population should establish permanent rule in eastern Europe and the Soviet Union. Here, women played a vital role. The Third Reich's aggressive population policy encouraged "racially pure" women to bear as many "Aryan" children as possible.

Schneidermann doesn’t offer a neat solution to the contradictions that he unearths, but he does give a few other examples of work that has aged well. The American columnist Dorothy Thompson, Schneidermann says, saw Hitler immediately for what he was, describing him, in 1932, as a man “without form, without expression, his face a caricature . . . his movements without dignity, anything but martial.” Thompson offered a lucid assessment of Nazism as a “repudiation of the history of western man, of Reason, Humanism, and the Christian ethic.” She was kicked out of Germany in 1934, but remained a tireless advocate against Nazi Germany. This strategy may not be available to every journalist, but Schneidermann also admires Georges Duhamel, a correspondent for Le Figaro, who faced certain pressures from his conservative bourgeois editors and readers in Paris not to moralize. On June 23, 1938, Le Figaro ran as a front-page headline a question that Duhamel, given the chance to interview Nazi leaders, would have asked: “What do you intend to do with the Jews?” In its simplicity, its directness, its willingness to seem naïve, Schneidermann finds it hauntingly unimpeachable.

After examining several sites for a new plant to manufacture Buna-N, a type of synthetic rubber essential to the war effort, the German chemical cartel IG Farben chose a site near the towns of Dwory and Monowice (Monowitz in German), about 7 kilometres (4.3 mi) east of Auschwitz I.[50] Tax exemptions were available to corporations prepared to develop industries in the frontier regions under the Eastern Fiscal Assistance Law, passed in December 1940. The site had good railway connections and access to raw materials.[51] In February 1941, Himmler ordered that the Jewish population of Oświęcim be expelled to make way for skilled laborers; that all Poles able to work remain in the town and work on building the factory; and that Auschwitz prisoners be used in the construction work.[52]
The crematoria consisted of a dressing room, gas chamber, and furnace room. In crematoria II and III, the dressing room and gas chamber were underground; in IV and V, they were on the ground floor. The dressing room had numbered hooks on the wall to hang clothes. In crematorium II, there was also a dissection room (Sezierraum).[172] SS officers told the victims they were to take a shower and undergo delousing. The victims undressed in the dressing room and walked into the gas chamber, which was disguised as a shower facility; signs in German said "To the baths" and "To disinfection". Some inmates were even given soap and a towel.[173]
Schneidermann doesn’t offer a neat solution to the contradictions that he unearths, but he does give a few other examples of work that has aged well. The American columnist Dorothy Thompson, Schneidermann says, saw Hitler immediately for what he was, describing him, in 1932, as a man “without form, without expression, his face a caricature . . . his movements without dignity, anything but martial.” Thompson offered a lucid assessment of Nazism as a “repudiation of the history of western man, of Reason, Humanism, and the Christian ethic.” She was kicked out of Germany in 1934, but remained a tireless advocate against Nazi Germany. This strategy may not be available to every journalist, but Schneidermann also admires Georges Duhamel, a correspondent for Le Figaro, who faced certain pressures from his conservative bourgeois editors and readers in Paris not to moralize. On June 23, 1938, Le Figaro ran as a front-page headline a question that Duhamel, given the chance to interview Nazi leaders, would have asked: “What do you intend to do with the Jews?” In its simplicity, its directness, its willingness to seem naïve, Schneidermann finds it hauntingly unimpeachable.
That is why, since its creation in 2009, the foundation that raises money to maintain the site of Auschwitz-Birkenau has had a guiding philosophy: “To preserve authenticity.” The idea is to keep the place intact, exactly as it was when the Nazis retreated before the Soviet Army arrived in January 1945 to liberate the camp, an event that resonates on Holocaust Remembrance Day, on Thursday.
At the end of 1944 and early in 1945, a complete deterioration of living conditions set in as thousands of survivors of death marches began to arrive at the camp. The large numbers arriving at the camp soon overwhelmed the meagre resources available. The camp administration did not attempt to house them. Serious overcrowding and a lack of sanitary facilities resulted in the break-out of a typhus epidemic. From January to mid-April 1945, some 35,000 prisoners died due to typhus, starvation and the terrible conditions within the camp.
If Godwin has a law clerk, she is working overtime this week. I refer to the truism Godwin’s Law: that all arguments eventually end with Hitler and the Holocaust. Everyone, it seems, is hurling comparisons between the American detention centers housing refugee children at the Mexican border and Nazi concentration camps. Former CIA director Michael Hayden tweeted an image of Auschwitz-Birkenau with the message, “Other governments have separated mothers and children.”

After the selection process was complete, those too ill or too young to walk to the crematoria were transported there on trucks or killed on the spot with a bullet to the head.[169][170] The belongings of the arrivals were seized by the SS and sorted in an area of the camp called "Canada", so called because Canada was seen as a land of plenty. Many of the SS at the camp enriched themselves by pilfering the confiscated property.[171]
National Socialism (German: Nationalsozialismus), more commonly known as Nazism (/ˈnɑːtsiɪzəm, ˈnæt-/),[1] is the ideology and practices associated with the Nazi Party – officially the National Socialist German Workers' Party (Nationalsozialistische Deutsche Arbeiterpartei or NSDAP) – in Nazi Germany, and of other far-right groups with similar aims.
After the war, the Allied governments, such as the United States, Britain, and the Soviet Union, held trials for the Nazi leaders. These trials were held in Nuremberg, in Germany. For this reason, these trials were called "the Nuremberg Trials." The Allied leaders accused the Nazi leaders of war crimes and crimes against humanity, including murdering millions of people (in the Holocaust), of starting wars, of conspiracy, and belonging to illegal organizations like the Schutzstaffel (SS). Most Nazi leaders were found guilty by the court, and they were sent to jail or executed by hanging.
Auschwitz I (or "the Main Camp") was the original camp. This camp housed prisoners, was the location of medical experiments, and the site of Block 11 (a place of severe torture) and the Black Wall (a place of execution). At the entrance of Auschwitz, I stood the infamous sign that stated "Arbeit Macht Frei" ("work makes one free"). Auschwitz I also housed the Nazi staff that ran the entire camp complex.
The racialists were not capable of drawing the practical conclusions from correct theoretical judgements, especially in the Jewish Question. In this way, the German racialist movement developed a similar pattern to that of the 1880s and 1890s. As in those days, its leadership gradually fell into the hands of highly honourable, but fantastically naïve men of learning, professors, district counsellors, schoolmasters, and lawyers—in short a bourgeois, idealistic, and refined class. It lacked the warm breath of the nation's youthful vigour.[175]
The courtyard between blocks 10 and 11, known as the "death wall" served as an execution area for Poles not in Auschwitz who had been sentenced to death by a criminal court—presided over by German judges—including for petty crimes such as stealing food.[139] Several rooms in block 11 were deemed the Polizei-Ersatz-Gefängnis Myslowitz in Auschwitz ("Alternative jail of the police station at Mysłowice").[140] There were also Sonderbehandlung cases ("special treatment") for Poles and others regarded as dangerous to the Third Reich.[141] Members of the camp resistance were shot there, as were 200 of the Sonderkommandos who took part in the Sonderkommando revolt in October 1944.[142] Thousands of Poles were executed at the death wall; Höss wrote that "execution orders arrived in an unbroken stream".[143]

According to the numbers provided by the US Holocaust Memorial Museum, Auschwitz was the site of the most deaths (1.1 million) of any of the six dedicated extermination camps. By these estimates, Auschwitz was the site of at least one out of every six deaths during the Holocaust. The only camp with comparable figures was Treblinka in north-east Poland, where about 850,000 are thought to have died.

From 1942, members of the Bureau of Information and Propaganda of the Warsaw-area Home Army published reports based on the accounts of escapees. The first was a fictional memoir, "Oświęcim. Pamiętnik więźnia" ("Auschwitz: Diary of a prisoner") by Halina Krahelska, published in April 1942 in Warsaw.[206] Also published in 1942 was the pamphlet Obóz śmierci (Camp of Death) by Natalia Zarembina,[207] and W piekle (In Hell) by Zofia Kossak-Szczucka, founder of Żegota.[208] In March 1944, the Polish Labor Group in New York published a report in English, "Oswiecim, Camp of Death (Underground Report)", with a foreword by Florence Jaffray Harriman, which described the gassing of prisoners from 1942.[209]

In 1942, with the Nazis occupying Holland, a thirteen-year-old Jewish girl and her family fled their home in Amsterdam and went into hiding. For the next two years, until their whereabouts were betrayed to the Gestapo, the Franks and another family lived cloistered in the “Secret Annexe” of an old office building. Cut off from the outside world, they faced hunger, boredom, the constant cruelties of living in confined quarters, and the ever-present threat of discovery and death. In her diary Anne Frank recorded vivid impressions of her experiences during this period. By turns thoughtful, moving, and surprisingly humorous, her account offers a fascinating commentary on human courage and frailty and a compelling self-portrait of a sensitive and spirited young woman whose promise was tragically cut short.
After Nazi Germany unleashed World War II in September 1939, vast new territorial conquests and larger groups of potential prisoners led to the rapid expansion of the concentration camp system to the east. The war did not change the original function of the concentration camps as detention sites for the incarceration of political enemies. The climate of national emergency that the conflict granted to the Nazi leaders, however, permitted the SS to expand the functions of the camps.
The Auschwitz camp itself covers 50 acres and comprises 46 historical buildings, including two-story red brick barracks, a kitchen, a crematorium and several brick and concrete administration buildings. In addition, Birkenau, a satellite camp about two miles away, sprawls over more than 400 acres and has 30 low-slung brick barracks and 20 wooden structures, railroad tracks and the remains of four gas chambers and crematoria. In total, Banas and her staff monitor 150 buildings and more than 300 ruins at the two sites.
On the night of 27 February 1933, the Reichstag building was set afire. Marinus van der Lubbe, a Dutch communist, was found guilty of starting the blaze. Hitler proclaimed that the arson marked the start of a communist uprising. The Reichstag Fire Decree, imposed on 28 February 1933, rescinded most civil liberties, including rights of assembly and freedom of the press. The decree also allowed the police to detain people indefinitely without charges. The legislation was accompanied by a propaganda campaign that led to public support for the measure. Violent suppression of communists by the SA was undertaken nationwide and 4,000 members of the Communist Party of Germany were arrested.[16]
When Germany invaded Poland in September 1939, triggering World War II, Adolf Hitler ordered that the Polish leadership and intelligentsia be destroyed.[16] Approximately 65,000 civilians, viewed as inferior to the Aryan master race, had been killed by the end of 1939. In addition to leaders of Polish society, the Nazis killed Jews, prostitutes, the Roma, and the mentally ill.[17][18] SS-Obergruppenführer Reinhard Heydrich, then head of the Gestapo, ordered on 21 September 1939 that Polish Jews be rounded up and concentrated into cities with good rail links. Initially the intention was to deport them to points further east, or possibly to Madagascar.[19] Two years later, in June 1941, in an attempt to obtain new territory, Hitler invaded the Soviet Union.[8]

Envisioning widespread car ownership as part of the new Germany, Hitler arranged for designer Ferdinand Porsche to draw up plans for the KdF-wagen (Strength Through Joy car), intended to be an automobile that everyone could afford. A prototype was displayed at the International Motor Show in Berlin on 17 February 1939. With the outbreak of World War II, the factory was converted to produce military vehicles. None were sold until after the war, when the vehicle was renamed the Volkswagen (people's car).[262]
Pseudo-scientific racist theories were central to Nazism, expressed in the idea of a "people's community" (Volksgemeinschaft). The party aimed to unite "racially desirable" Germans as national comrades, while excluding those deemed either to be political dissidents, physically or intellectually inferior, or of a foreign race (Fremdvölkische).[9] The Nazis sought to strengthen the Germanic people, the "Aryan master race", through racial purity and eugenics, broad social welfare programs, and a collective subordination of individual rights, which could be sacrificed for the good of the state on behalf of the people.

When the 322nd Rifle Division of the Red Army liberated Auschwitz on 27 January 1945, the soldiers found 7,500 prisoners alive and over 600 corpses.[248][249] Auschwitz II-Birkenau was liberated at around 3:30 p.m., and the main camp (Auschwitz I) two hours later.[250] Items found by the Soviet soldiers included 370,000 men's suits, 837,000 women's garments, and 7.7 tonnes (8.5 short tons) of human hair.[248][249] Primo Levi described seeing the first four Russian soldiers on horseback approach the camp at Monowitz, where he had been in the sick bay. The soldiers threw "strangely embarrassed glances at the sprawling bodies, at the battered huts and at us few still alive ...":[251]

Movies were popular in Germany in the 1930s and 1940s, with admissions of over a billion people in 1942, 1943 and 1944.[478][479] By 1934, German regulations restricting currency exports made it impossible for US film makers to take their profits back to America, so the major film studios closed their German branches. Exports of German films plummeted, as their antisemitic content made them impossible to show in other countries. The two largest film companies, Universum Film AG and Tobis, were purchased by the Propaganda Ministry, which by 1939 was producing most German films. The productions were not always overtly propagandistic, but generally had a political subtext and followed party lines regarding themes and content. Scripts were pre-censored.[480]
In November 1938 a young Jewish man requested an interview with the German ambassador in Paris and met with a legation secretary, whom he shot and killed to protest his family's treatment in Germany. This incident provided the pretext for a pogrom the NSDAP incited against the Jews on 9 November 1938. Members of the SA damaged or destroyed synagogues and Jewish property throughout Germany. At least 91 German Jews were killed during this pogrom, later called Kristallnacht, the Night of Broken Glass.[306][307] Further restrictions were imposed on Jews in the coming months – they were forbidden to own businesses or work in retail shops, drive cars, go to the cinema, visit the library, or own weapons, and Jewish pupils were removed from schools. The Jewish community was fined one billion marks to pay for the damage caused by Kristallnacht and told that any insurance settlements would be confiscated.[308] By 1939, around 250,000 of Germany's 437,000 Jews had emigrated to the United States, Argentina, Great Britain, Palestine, and other countries.[309][310] Many chose to stay in continental Europe. Emigrants to Palestine were allowed to transfer property there under the terms of the Haavara Agreement, but those moving to other countries had to leave virtually all their property behind, and it was seized by the government.[310]
The eight residents of the secret annex were transported to Auschwitz on the last train leaving the transit camp Westerbork. After a month at Auschwitz, Anne and her sister Margot were transported to Bergen-Belsen concentration camp, where thousands of people died everyday from hunger and sickness. Margot and Anne both contracted typhus and died within a short time of each other in March 1945, only a few weeks before the liberation.
As Soviet troops closed in on Auschwitz in late January 1945, the SS hurriedly evacuated some 56,000 prisoners on death marches to the west, then blew up the Birkenau gas chambers and crematoria to erase evidence of the mass murders. The Red Army liberated Auschwitz on January 27, 1945. Some 6,000 people were still alive at Birkenau. Another 1,000 were found at the main camp.
The Germans reaffirmed their alliance with Italy and signed non-aggression pacts with Denmark, Estonia, and Latvia whilst trade links were formalised with Romania, Norway, and Sweden.[76] Foreign Minister Joachim von Ribbentrop arranged in negotiations with the Soviet Union a non-aggression pact, the Molotov–Ribbentrop Pact, signed in August 1939.[77] The treaty also contained secret protocols dividing Poland and the Baltic states into German and Soviet spheres of influence.[78]

During the German invasion of the Soviet Union the Nazis began the first mass killings of Jews. Between June and September 1941, the Einsatzgruppen supported by local collaborators murdered hundreds of thousands of Jews across Latvia, Lithuania, Estonia and the Soviet Union. Having observed the killings, Adolf Eichmann ordered a more efficient method of killing the Jews of Europe be developed.
The gas chambers in the Auschwitz complex constituted the largest and most efficient extermination method employed by the Nazis. Four chambers were in use at Birkenau, each with the potential to kill 6,000 people daily. They were built to look like shower rooms in order to confuse the victims. New arrivals at Birkenau were told that they were being sent to work, but first needed to shower and be disinfected. They would be led into the shower-like chambers, where they were quickly gassed to death with the highly poisonous Zyklon B gas.
However, this regulation was soon waived and there is ample evidence that full Nazi Party members served in the Wehrmacht in particular after the outbreak of World War II. The Wehrmacht Reserves also saw a high number of senior Nazis enlisting, with Reinhard Heydrich and Fritz Todt joining the Luftwaffe, as well as Karl Hanke who served in the army.
In her writing, Frank examined her relationships with the members of her family, and the strong differences in each of their personalities. She considered herself to be closest emotionally to her father, who later commented, "I got on better with Anne than with Margot, who was more attached to her mother. The reason for that may have been that Margot rarely showed her feelings and didn't need as much support because she didn't suffer from mood swings as much as Anne did."[30] The Frank sisters formed a closer relationship than had existed before they went into hiding, although Anne sometimes expressed jealousy towards Margot, particularly when members of the household criticized Anne for lacking Margot's gentle and placid nature. As Anne began to mature, the sisters were able to confide in each other. In her entry of 12 January 1944, Frank wrote, "Margot's much nicer ... She's not nearly so catty these days and is becoming a real friend. She no longer thinks of me as a little baby who doesn't count."[31]
On 2 August 1934, Hindenburg died. The previous day, the cabinet had enacted the "Law Concerning the Highest State Office of the Reich", which stated that upon Hindenburg's death the office of president would be abolished and its powers merged with those of the chancellor.[39] Hitler thus became head of state as well as head of government and was formally named as Führer und Reichskanzler ("Leader and Chancellor") – although eventually Reichskanzler was dropped.[40] Germany was now a totalitarian state with Hitler at its head.[41] As head of state, Hitler became Supreme Commander of the armed forces. The new law provided an altered loyalty oath for servicemen so that they affirmed loyalty to Hitler personally rather than the office of supreme commander or the state.[42] On 19 August, the merger of the presidency with the chancellorship was approved by 90 percent of the electorate in a plebiscite.[43]
Several SS personnel oversaw the killings at each gas chamber, while the bulk of the work was done by the mostly Jewish prisoners known as Sonderkommandos (special squads).[91][92] Hungarian doctor Miklós Nyiszli reported that the Sonderkommando numbered around 860 prisoners when the Hungarian Jews were being killed in May–July 1944.[93] Their responsibilities included removing goods and corpses from the incoming trains, guiding victims to the dressing rooms and gas chambers, and working in the "Canada" barracks, where the victims' possessions were stored.[94] Housed separately from other prisoners, in somewhat better conditions, their quality of life was further improved by access to the goods taken from murdered prisoners, which they were sometimes able to steal and trade on Auschwitz's black market.[95] Many Sonderkommandos committed suicide in response to the horrors of their work; others were generally shot by the SS in a matter of weeks. New Sonderkommando units were formed from incoming transports. Almost none of the 2,000 prisoners placed in these units survived to the camp's liberation.[96]
The SS gained its independence from the SA in July 1934, in the wake of the Röhm purge. Hitler then authorized SS leader Heinrich Himmler to centralize the administration of the concentration camps and formalize them into a system. Himmler chose SS Lieutenant General Theodor Eicke for this task. Eicke had been the commandant of the SS concentration camp at Dachau since June 1933. Himmler appointed him Inspector of Concentration Camps, a new section of the SS subordinate to the SS Main Office.