Sprawozdanie 6/42 was sent to Polish officials in London by courier and had reached them by 12 November 1942, when it was translated into English and added to another report, "Report on Conditions in Poland". Dated 27 November, this was forwarded to the Polish Embassy in the United States.[341] On 10 December 1942, the Polish Foreign Affairs Minister, Edward Raczyński, addressed the fledgling United Nations on the killings; the address was distributed with the title The Mass Extermination of Jews in German Occupied Poland. He told them about the use of poison gas; about Treblinka, Bełżec and Sobibor; that the Polish underground had referred to them as extermination camps; and that tens of thousands of Jews had been killed in Bełżec in March and April 1942.[342] One in three Jews in Poland were already dead, he estimated, from a population of 3,130,000.[343] Raczyński's address was covered by the New York Times and The Times of London. Winston Churchill received it, and Anthony Eden presented it to the British cabinet. On 17 December 1942, 11 Allies issued the Joint Declaration by Members of the United Nations condemning the "bestial policy of cold-blooded extermination".[344][345]
A training center for SS concentration camp guards, Dachau’s organization and routine became the model for all Nazi concentration camps. A new crematorium area was constructed in 1942 to dispose of the increasing number of casualties of typhoid, starvation, and executions. Dachau’s prisoners were used as subjects of medical experiments and hundreds of prisoners died or were permanently crippled as a result of these experiments.
Mass grave at Belsen camp, shortly after its liberation by British troops. Photographs such as this are widely reproduced as proof of a German policy of extermination. Contrary to Allied propaganda claims of the time, and Holocaust allegations in recent decades, though, these unfortunate prisoners were victims of typhus and starvation that were indirect consequences of the war – not of any deliberate policy. At least 14,000 Jews died in the camp following the British takeover.

The mass killings of Jews in the occupied Soviet territories were assigned to four SS formations called Einsatzgruppen ("task groups"), which were under Heydrich's overall command. Similar formations had been used to a limited extent in Poland in 1939, but the ones operating in the Soviet territories were much larger.[242] The Einsatzgruppen's commanders were ordinary citizens: the great majority were professionals and most were intellectuals.[243] By the winter of 1941–1942, the four Einsatzgruppen and their helpers had killed almost 500,000 people.[244] The largest massacre of Jews by the mobile killing squads in the Soviet Union was at a ravine called Babi Yar outside Kiev,[245] where 33,771 Jews were killed in a single operation on 29–30 September 1941.[246][n] A mixture of SS and Security Police, assisted by Ukrainian police, carried out the killings.[248] Although they did not actively participate in the killings, men of the German 6th Army helped round up the Jews of Kiev and transport them to be shot.[249] By the end of the war, around two million are thought to have been victims of the Einsatzgruppen and their helpers in the local population and the German Army. Of those, about 1.3 million were Jews and up to a quarter of a million Roma.[250]
Adolf Hitler became chancellor of Germany on January 30, 1933, and in March of that year the first Nazi concentration camp opened in the town of Dachau, just outside Munich, a major city in southern Germany. The camp initially housed political prisoners, and its first group of detainees consisted primarily of socialists and communists. Hilmar Wäckerle (1899-1941), an official in the “Schutzstaffel” (a Nazi paramilitary organization commonly known as the SS), served as the first commandant of Dachau.
The Nazis introduced a racial hierarchy—keeping Poles in harsh conditions, while favoring German priests.[58]:148 697 Poles arrived in December 1941, and a further 500 of mainly elderly clergy were brought in October the following year. Inadequately clothed for the bitter cold, of this group only 82 survived. A large number of Polish priests were chosen for Nazi medical experiments. In November 1942, 20 were given phlegmons. 120 were used by Dr Schilling for malaria experiments between July 1942 and May 1944. Several Poles met their deaths with the "invalid trains" sent out from the camp, others were liquidated in the camp and given bogus death certificates. Some died of cruel punishment for misdemeanors—beaten to death or run to exhaustion.[58]:148–9
Schindler was founded in 1874 by Robert Schindler and Eduard Villiger. Soon, they established a mechanical engineering workshop on an island in the Reuss River in Lucerne, Switzerland. At that time, the company was called "Schindler & Villiger". In 1892, Eduard Villiger leaves the partnership and the company continues under the name of Robert Schindler, Machinery Manufacturer.
The camp changed its name to Bergen-Belsen and was converted into a concentration camp in 1943. Jews with foreign passports were kept there to be exchanged for German nationals imprisoned abroad, although very few exchanges were made. About 200 Jews were allowed to immigrate to Palestine and about 1,500 Hungarian Jews were allowed to immigrate to Switzerland, both took place under the rubric of exchanges for German nationals.
In the summer of 1943, Stalag XI-C (311) was dissolved and Bergen-Belsen became a branch camp of Stalag XI-B. It served as the hospital for all Soviet POWs in the region until January 1945. Other inmates/patients were Italian military internees from August 1944 and, following the suppression of the Warsaw Uprising in October 1944, around 1,000 members of the Polish Home Army were imprisoned in a separate section of the POW camp.[6]