The Warsaw Ghetto Uprising was the largest ghetto revolt. Massive deportations (or Aktions) had been held in the ghetto from July to September 1942, emptying the ghetto of the majority of Jews imprisoned there. When the Germans entered the ghetto again in January 1943 to remove several thousand more, small unorganized groups of Jews attacked them. After four days, the Germans withdrew from the ghetto, having deported far fewer people than they had intended. The Nazis reentered the ghetto on April 19, 1943, the eve of Passover, to evacuate the remaining Jews and close the ghetto. The Jews, using homemade bombs and stolen or bartered weapons, resisted and withstood the Germans for 27 days. They fought from bunkers and sewers and evaded capture until the Germans burned the ghetto building by building. By May 16 the ghetto was in ruins and the uprising crushed.
The number of prisoners incarcerated in Dachau between 1933 and 1945 exceeded 188,000. The number of prisoners who died in the camp and the subcamps between January 1940 and May 1945 was at least 28,000, to which must be added those who perished there between 1933 and the end of 1939. It is unlikely that the total number of victims who died in Dachau will ever be known.
In many instances, their imprisonment was a result of the emergency decree that Adolf Hitler proposed and President Paul Von Hindenberg approved on February 28, 1933. The Decree for the Protection of the People and the State (commonly called the Reichstag Fire Decree) suspended the civil rights of German civilians and prohibited the press from publishing anti-government materials.

Gun wrote that the International Committee of Dachau, headed by Patrick O'Leary, had set up its headquarters at 9 a.m. on April 29th in Block 1, the barracks building that was the closest to the gate house of the prison compound. This was the building that housed the camp library. Gun also wrote that Lt. Heinrich Skodzensky had arrived at Dachau on April 27th and on the day of liberation, he had remained in the gate house all that day.
The rioting was triggered by the assassination of Ernst vom Rath, a German diplomat in Paris, by a Polish Jewish teenager, Herschel Grynszpan, on November 7th. Grynszpan did not attempt to escape and claimed that the assassination was motivated by the persecution of the Jewish people. Despite being attended to by Hitler’s personal physician, vom Rath died two days later.
Under such terrible conditions, Kramer did everything in his power to reduce suffering and prevent death among the inmates, even appealing to the hard-pressed German army. "I don't know what else to do," he told high-ranking army officers. "I have reached the limit. Masses of people are dying. The drinking water supply has broken down. A trainload of food was destroyed by low-flying [Allied] war planes. Something must be done immediately." /16

Some former inmates and a few historians have claimed that Jews were put to death in gas chambers at Bergen-Belsen. For example, an "authoritative" work published shortly after the end of the war, A History of World War II, informed readers: "In Belsen, [Commandant] Kramer kept an orchestra to play him Viennese music while he watched children torn from their mothers to be burned alive. Gas chambers disposed of thousands of persons daily." /31
By March 9, 1945, a total of 28,838 prisoners had been brought to Dachau and then transferred to the 11 Landsberg sub-camps. Approximately 14,500 prisoners died in these camps. In April 1945, the Kaufering camps were evacuated, except for the Kaufering IV camp where sick prisoners were left behind. Kaufering IV was liberated by American soldiers two days before the main camp was liberated.
^ Nazi Science – The Dachau Hypothermia Experiments. Robert L. Berger, N Engl J Med 1990; 322:1435–1440 May 17, 1990 DOI: 10.1056/NEJM199005173222006. quote: "On analysis, the Dachau hypothermia study has all the ingredients of a scientific fraud, and rejection of the data on purely scientific grounds is inevitable. They cannot advance science or save human lives." ... "Future citations are inappropriate on scientific grounds."

Nazi racial policy aimed at forcing Jews to emigrate.[109] Fifty thousand German Jews had left Germany by the end of 1934,[110] and by the end of 1938, approximately half the German Jewish population had left the country.[109] Among the prominent Jews who left was the conductor Bruno Walter, who fled after being told that the hall of the Berlin Philharmonic would be burned down if he conducted a concert there.[111] Albert Einstein, who was in the United States when Hitler came to power, never returned to Germany; he was expelled from the Kaiser Wilhelm Society and the Prussian Academy of Sciences and his citizenship was revoked.[112] Other Jewish scientists, including Gustav Hertz, lost their teaching positions and left the country.[113] On 12 March 1938, Germany annexed Austria. Austrian Nazis broke into Jewish shops, stole from Jewish homes and businesses, and forced Jews to perform humiliating acts such as scrubbing the streets or cleaning toilets.[114] Jewish businesses were "Aryanized", and all the legal restrictions on Jews in Germany were imposed.[115] In August that year, Adolf Eichmann was put in charge of the Central Agency for Jewish Emigration in Vienna (Zentralstelle für jüdische Auswanderung in Wien). About 100,000 Austrian Jews had left the country by May 1939, including Sigmund Freud and his family, who moved to London.[116] The Évian Conference was held in July 1938 by 32 countries as an attempt to help the increased refugees from Germany, but aside from establishing the largely ineffectual Intergovernmental Committee on Refugees, little was accomplished and most countries participating did not increase the number of refugees they would accept.[117]
The Nazis brought their own strain of radical ruthlessness to these ideas. They glorified war and saw the uncompromising struggle for survival between nations and races as the engine of human progress. They rejected morality as a Jewish idea, which had corrupted and weakened the German people. They maintained that a great nation such as Germany had the right and duty to build an empire based on the subjugation of 'inferior races'. They looked eastwards to Poland and Russia (where, as it happened, the great majority of European Jews lived) for the territorial expansion of their 'living space' (Lebensraum).
After its defeat in World War I, Germany was humiliated by the Versailles Treaty, which reduced its prewar territory, drastically reduced its armed forces, demanded the recognition of its guilt for the war, and stipulated it pay reparations to the allied powers. With the German Empire destroyed, a new parliamentary government called the Weimar Republic was formed. The republic suffered from economic instability, which grew worse during the worldwide depression after the New York stock market crash in 1929. Massive inflation followed by very high unemployment heightened existing class and political differences and began to undermine the government.
The Soviets found 7,600 inmates in Auschwitz.[385] Some 60,000 prisoners were discovered at Bergen-Belsen by the British 11th Armoured Division;[386] 13,000 corpses lay unburied, and another 10,000 people died from typhus or malnutrition over the following weeks.[387] The BBC's war correspondent, Richard Dimbleby, described the scenes that greeted him and the British Army at Belsen, in a report so graphic the BBC declined to broadcast it for four days, and did so, on 19 April, only after Dimbleby had threatened to resign.[388]
Transportation between camps was often carried out in freight cars with prisoners packed tightly. Long delays would take place; prisoners might be confined in the cars on sidings for days.[190] In mid-1942 work camps began requiring newly arrived prisoners to be placed in quarantine for four weeks.[191] Prisoners wore colored triangles on their uniforms, the color of the triangle denoting the reason for their incarceration. Red signified a political prisoner, Jehovah's Witnesses had purple triangles, "asocials" and criminals wore black and green. Badges were pink for gay men and yellow for Jews.[192] Jews had a second yellow triangle worn with their original triangle, the two forming a six-pointed star.[193][194] In Auschwitz, prisoners were tattooed with an identification number on arrival.[195]
On April 26, 1945, as American forces approached, there were 67,665 registered prisoners in Dachau and its subcamps. More than half of this number were in the main camp. Of these, 43,350 were categorized as political prisoners, while 22,100 were Jews, with the remainder falling into various other categories. Starting that day, the Germans forced more than 7,000 prisoners, mostly Jews, on a death march from Dachau to Tegernsee far to the south. During the death march, the Germans shot anyone who could no longer continue; many also died of hunger, cold, or exhaustion.
As Allied forces advanced toward Germany, the Germans began to more prisoners from concentration camps near the front to prevent the liberation of large numbers of prisoners. Transports from the evacuated camps arrived continuously at Dachau, resulting in a dramatic deterioration of conditions. After days of travel, with little or no food or water, the prisoners arrived weak and exhausted, near death. Typhus epidemics became a serious problem due to overcrowding, poor sanitary conditions, and the weakened state of the prisoners.

In the summer of 1941, the camp physician at Dachau was ordered to register those prisoners who were sick or unable to work. Some weeks later, a medical commission from Berlin arrived to pass judgement, and during the winter of 1941 -1942 “invalid transports” departed from Dachau in quick succession to the Hartheim castle, near Linz. Hartheim was one of the murder facilities included in the euthanasia programme. There 3166 inmates from Dachau were gassed.
Conditions in the camp were good by concentration camp standards, and most prisoners were not subjected to forced labor. However, beginning in the spring of 1944 the situation deteriorated rapidly. In March, Belsen was redesignated an Ehrholungslager [Recovery Camp], where prisoners of other camps too sick to work were brought, though none received medical treatment. As the German Army retreated in the face of the advancing Allies, the concentration camps were evacuated and their prisoners sent to Belsen. The facilites in the camp were unable to accommodate the sudden influx of thousands of prisoners and all basic services - food, water and sanitation - collapsed, leading to the outbreak of disease. Anne Frank and her sister, Margot, died of typhus in March 1945, along with other prisoners in a typhus epidemic.

SS-Hauptsturmführer Adolf Haas became the first commandant of the Bergen-Belsen camp in the spring of 1943; SS-Hauptsturmführer Josef Kramer replaced him in December 1944. The number of SS functionaries in Bergen-Belsen varied over the course of the camp's existence. The SS succeeded in destroying many of the camp's files, including those on personnel.

September 26, 1942 - SS begins cashing in possessions and valuables of Jews from Auschwitz and Majdanek. German banknotes are sent to the Reichs Bank. Foreign currency, gold, jewels and other valuables are sent to SS Headquarters of the Economic Administration. Watches, clocks and pens are distributed to troops at the front. Clothing is distributed to German families. By February 1943, over 800 boxcars of confiscated goods will have left Auschwitz.
As the Allies began to advance on Nazi Germany, the SS began to evacuate the first concentration camps in summer 1944.[30] Thousands of prisoners were killed before the evacuation due to being ill or unable to walk. At the end of 1944, the overcrowding of camps began to take its toll on the prisoners. The unhygienic conditions and the supplies of food rations became disastrous. In November a typhus fever epidemic broke out that took thousands of lives.[30]
In April 1943, a part of the Bergen-Belsen camp was taken over by the SS Economic-Administration Main Office (SS Wirtschafts-Verwaltungshauptamt; WVHA). It thus became part of the concentration camp system, run by the SS Schutzstaffel but it was a special case.[7] Having initially been designated a Zivilinterniertenlager ("civilian internment camp"), in June 1943 it was redesignated Aufenthaltslager ("holding camp"), since the Geneva Conventions stipulated that the former type of facility must be open to inspection by international committees.[8] This "holding camp" or "exchange camp" was for Jews who were intended to be exchanged for German civilians interned in other countries, or for hard currency.[9] The SS divided this camp into subsections for individual groups (the "Hungarian camp", the "special camp" for Polish Jews, the "neutrals camp" for citizens of neutral countries and the "Star camp" for Dutch Jews). Between the summer of 1943 and December 1944 at least 14,600 Jews, including 2,750 children and minors were transported to the Bergen-Belsen "holding" or exchange camp.[10]:160 Inmates were made to work, many of them in the "shoe commando" which salvaged usable pieces of leather from shoes collected and brought to the camp from all over Germany and occupied Europe. In general the prisoners of this part of the camp were treated less harshly than some other classes of Bergen-Belsen prisoner until fairly late in the war, due to their perceived potential exchange value.[9] However, only around 2,560 Jewish prisoners were ever actually released from Bergen-Belsen and allowed to leave Germany.[9]