The 20th Armored Division was supporting both the 45th Division and the 42nd Division, but most accounts of the liberation of Dachau do not mention any tanks being at the Arbeit Macht Frei gate at the time that the men of the 45th and 42nd divisions arrived. It was very cold at Dachau on the day of liberation, so cold that it snowed on May 1st, two days later, but maybe it was hot inside the tank and that's why the American major was sweating.
By October 1944, there was a shortage of coal in all of Germany and the dead could no longer be cremated. A new cemetery was opened on a hill north of the camp, called Leitenberg, where the last Dachau victims were buried in unmarked mass graves. Ashes of earlier unknown victims are buried in the area north of the new crematorium. Markers were placed on the sites of the mass graves of ashes between 1950 and 1964.
After 1942, the economic functions of the camps, previously secondary to their penal and terror functions, came to the fore. Forced labor of camp prisoners became commonplace. The guards became much more brutal, and the death rate increased as the guards not only beat and starved prisoners, but killed them more frequently. Vernichtung durch Arbeit ("extermination through labor") was a policy—camp inmates would literally be worked to death, or to physical exhaustion, at which point they would be gassed or shot. The Germans estimated the average prisoner's lifespan in a concentration camp at three months, due to lack of food and clothing, constant epidemics, and frequent punishments for the most minor transgressions. The shifts were long and often involved exposure to dangerous materials.
Following the invasion of the Soviet Union in June 1941, Einsatzgruppen and, later, militarized battalions of Order Police officials, moved behind German lines to carry out mass-murder operations against Jews, Roma, and Soviet state and Communist Party officials. German SS and police units, supported by units of the Wehrmacht and the Waffen SS, murdered more than a million Jewish men, women, and children, and hundreds of thousands of others.
After Kristallnacht, Jewish businesses were expropriated, private employers were urged to sack Jewish employees, and offices were set up to speed emigration. Imprisoned Jews could buy freedom if they promised to leave the country, abandoning their assets. By the outbreak of war in September 1939, half of Germany's 500,000 Jews had fled, as had many Jews from Austria and the German-occupied parts of Czechoslovakia.
The camp was liberated on April 15, 1945, by the British 11th Armoured Division. The soldiers discovered approximately 60,000 prisoners inside, most of them half-starved and seriously ill, and another 13,000 corpses, including those of Anne and Margot Frank, lying around the camp unburied. The horrors of the camp, documented on film and in pictures, made the name "Belsen" emblematic of Nazi crimes in general for public opinion in many countries in the immediate post-1945 period. Today, there is a memorial with an exhibition hall at the site.