In the 1920s, political opponents of the NSDAP in the German labour movement seized on this and – using the earlier abbreviated term "Sozi" for Sozialist (English: Socialist) as an example[8] – shortened the first part of the NSDAP's name, Nationalsozialistische, to the dismissive "Nazi", in order to associate them with the derogatory use of the term mentioned above.[9][7][10][11][12][13]
In the Soviet Union by 1922 there were 23 concentration camps for the incarceration of persons accused of political offenses as well as criminal offenses. Many corrective labour camps were established in northern Russia and Siberia, especially during the First Five-Year Plan, 1928–32, when millions of rich peasants were driven from their farms under the collectivization program. The Stalinist purges of 1936–38 brought additional millions into the camps—said to be essentially institutions of slavery.
The similarities between the Rivesaltes camp and the Trump administration’s camps for children should already be apparent: a temporary, insufficiently conceived facility designed to prevent foreigners from entering the country. And, as with Rivesaltes, officials have no real plan for what to do with them. Moreover, as historian Terrence Peterson emphasized, Rivesaltes “remained the go-to space for the French government simply because it existed. The infrastructure was in place that allowed the French state to simply shift unwanted populations into a controlled space rather than dealing substantively with changing migration policy or dealing with the human consequences of bad policy.”
The gas chambers worked to their fullest capacity from April to July 1944, during the massacre of Hungary's Jews. Hungary was an ally of Germany during the war, but it had resisted turning over its Jews until Germany invaded that March.[178] A rail spur leading to crematoria II and III in Auschwitz II was completed that May, and a new ramp was built between sectors BI and BII to deliver the victims closer to the gas chambers.[179] On 29 April the first 1,800 Hungarian Jews arrived at the camp;[179] from 14 May until early July 1944, 437,000 Hungarian Jews, half the pre-war population, were deported to Auschwitz, at a rate of 12,000 a day for a considerable part of that period.[105] The crematoria had to be overhauled. Crematoria II and III were given new elevators leading from the stoves to the gas chambers, new grates were fitted, and several of the dressing rooms and gas chambers were painted. Cremation pits were dug behind crematorium V.[179] The last mass transports to arrive in Auschwitz were 60,000–70,000 Jews from the Łódź Ghetto, some 2,000 from Theresienstadt, and 8,000 from Slovakia.[167][180] The last selection took place on 30 October 1944.[163] Crematorium IV was demolished after the Sonderkommando revolt on 7 October 1944. The SS blew up crematorium V on 14 January 1945, and crematoria II and III on 20 January.[181]
Until 1990, the museum’s directors were all former prisoners. Cywinski is just 37. His office is on the first floor of a former SS administration building directly across from a former gas chamber and crematorium. He tells me that Auschwitz is about to slip into history. The last survivors will soon die, and with them the living links to what happened here. Preserving the site becomes increasingly important, Cywinski believes: younger generations raised on TV and movie special effects need to see and touch the real thing.

I do not understand, however, the attitude of Hitler and his followers in this matter. To atone for the Paris murder, the Nazis imposed a collective punishment upon all German subjects of Jewish origin. First they organized a 'spontaneous' outburst of popular rage on the eve of November 10, 1938, throughout Germany at almost the same hour, and everywhere by the same methods. Abuses and tortures, even manslaughter, destruction of Jewish shops and apartments, arson of synagogues with gasoline brought for the purpose—such was the program.
Our trip, full of suspense, took us past the baroque palace of Oranienburg, built at the time of Frederick the Great, through the sand of Brandenburg and through deserted pine forests, thence to a large settlement. Suddenly we saw in front of us high walls (about fourteen feet) which, at intervals of two hundred yards, were crowned by watchtowers, so that the whole camp gave the impression of a Chinese city as we knew it from pictures. We drove through an iron gate, and soon after through a second gate in a second inner wall about a hundred feet from the first one. In the space between the two walls there were barracks with administration and treasury buildings, and vegetable and other gardens. The inner gate, which led through the main watchtower, bore the inscription 'Work Makes Free'—an inscription which many inmates of the camp, after years of work and vain hope for release, will probably take as sarcasm.
Last, and perhaps most ominously for our comparisons with the Holocaust, the camps can be the first step toward darker developments, as some have already argued. These “concentration camps” will not lead to gas chambers, but their existence may well lead to the erosion of respect for human rights, the rule of law and government accountability that characterized the Third Reich. Unless, of course, the children are all actors.
As Soviet armies advanced in 1944 and early 1945, Auschwitz was gradually abandoned. On January 18, 1945, some 60,000 prisoners were marched to Wodzisław Śląski, where they were put on freight trains (many in open cars) and sent westward to concentration camps away from the front. One in four died en route from starvation, cold, exhaustion, and despair. Many were shot along the way in what became known as the “death marches.” The 7,650 sick or starving prisoners who remained were found by arriving Soviet troops on January 27, 1945.

In most of the concentration camps, the Nazi SS either installed or had plans to install gas chambers to assist in their daily business of killing prisoners who were too weak or sick to work. Gas chambers were also to kill small targeted groups of individuals whom the Nazis wanted to eliminate (Polish resistance fighters, Soviet POWs, etc.). This was the purpose of the installation of gas chambers at Mauthausen, Sachsenhausen, Stutthof, Auschwitz I, Ravensbrück, Lublin/Majdanek, etc.

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]

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.

The museum has decided not to conserve one thing: the mass of human hair that fills a vast vitrine. Over the years, the hair has lost its individual colors and has begun to gray. Out of respect for the dead, it cannot be photographed. Several years ago, the International Auschwitz Council of advisers had an agonizing debate about the hair. Some suggested burying it. Others wanted to conserve it. But one adviser raised a point: How can we know if its original owners are dead or alive? Who are we to determine its fate?
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,[18][19][20] 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.[11]