Deportees were brought to Auschwitz crammed in wretched conditions into goods or cattle wagons, arriving near a railway station or at one of several dedicated trackside ramps, including one next to Auschwitz I. The Altejudenrampe (old Jewish ramp), part of the Oświęcim freight railway station, was used from 1942 to 1944 for Jewish transports.[102][103] Located between Auschwitz I and Auschwitz II, arriving at this ramp meant a 2.5 km journey to Auschwitz II and the gas chambers. Most deportees were forced to walk, accompanied by SS men and a car with a Red Cross symbol that carried the Zyklon B, as well as an SS doctor in case officers were poisoned by mistake. Inmates arriving at night, or who were too weak to walk, were taken by truck.[104] Work on another railway line and Judenrampe (pictured right) between sectors BI and BII in Auschwitz II, was completed in May 1944 for the arrival of Hungarian Jews,[103] who between May and early July 1944 were deported to Auschwitz II at a rate of 12,000 a day.[105] The rails led directly to the area around the gas chambers.[102]
Germany's war in the East was based on Hitler's long-standing view that Jews were the great enemy of the German people and that Lebensraum was needed for Germany's expansion. Hitler focused his attention on Eastern Europe, aiming to conquer Poland and the Soviet Union.[182][183] After the occupation of Poland in 1939, all Jews living in the General Government were confined to ghettos, and those who were physically fit were required to perform compulsory labour.[317] In 1941 Hitler decided to destroy the Polish nation completely; within 15 to 20 years the General Government was to be cleared of ethnic Poles and resettled by German colonists.[318] About 3.8 to 4 million Poles would remain as slaves,[319] part of a slave labour force of 14 million the Nazis intended to create using citizens of conquered nations.[183][320]
It is not white supremacy that differentiates America from Nazi Germany, but rather the constitutional architecture of this country—a democratic system tested, broken, remade, rewritten. Racism in the United States is counterbalanced by an emancipatory spirit. The Constitution enshrined slavery, but this same Constitution was transformed as a result of the bloodiest war in U.S. history, which ended the Southern slave empire. The Civil War was a second American founding, and the passage of the Thirteenth, Fourteenth, and Fifteenth amendments advanced the American spirit of equality before the law. Even amid the racist terror that lasted long after the Civil War, African Americans made room in the United States to fight for their freedom, equality, and dignity. Nazi Germany, by contrast, was a totalitarian state, and its express objective was the erasure of the Jewish people. These differences cannot be minimized.

In May 1943 the SS (Schutzstaffel, "Protective Echelon") announced the removal of all remaining Jews in the Netherlands. In a voluntary call-up on May 25, five hundred Jews voluntarily reported for deportation to Westerbork transit camp. The next day, raids were carried out and 3,000 people were rounded up. Most of these people were sent to the Sobibor extermination camp. About 107,000 Dutch Jews were deported during the war—only about 5,000 returned.
Dunin-Wasowicz, Krzysztof (1980). "Forced Labor and Sabotage in the Nazi Concentration Camps". In Gutman, Yisrael; Saf, Avital. The Nazi concentration Camps: Structure and Aims, the Image of the Prisoner, the Jews in the Camps: Proceedings of the Fourth Yad Vashem International Historical Conference, Jerusalem, January 1980. Jerusalem: Yad Vashem. pp. 133–142.
Though most Nazi concentration and extermination camps were destroyed after the war, some of them were turned into permanent memorials, and museums. In Communist Poland, some camps such as Majdanek, Jaworzno, Potulice and Zgoda were used by the Soviet NKVD to hold German prisoners of war, suspected or confirmed Nazis and Nazi collaborators, anti-Communists and other political prisoners, as well as civilian members of the German-speaking, Silesian and Ukrainian ethnic minorities. Currently, there are memorials to the victims of both Nazi and communist camps at Potulice; they have helped to enable a German-Polish discussion on historical perceptions of World War II.[55] In East Germany, the concentration camps at Buchenwald and Sachsenhausen were used for similar purposes. Dachau concentration camp was used as a detention centre for the arrested Nazis.[56]
Use of the word "concentration" came from the idea of confining people in one place because they belong to a group that is considered undesirable in some way. The term itself originated in 1897 when the "reconcentration camps" were set up in Cuba by General Valeriano Weyler. In the past, the U.S. government had used concentration camps against Native Americans and the British had also used them during the Second Boer War. Between 1904 and 1908, the Schutztruppe of the Imperial German Army operated concentration camps in German South-West Africa (now Namibia) as part of its genocide of the Herero and Namaqua peoples. The Shark Island Concentration Camp in Lüderitz was the largest camp and the one with the harshest conditions.