The Nuremberg trials were a series of military tribunals, held by the Allied forces after World War II in Nuremberg, Germany, to prosecute prominent members of the political, military, and economic leadership of Nazi Germany. The first of these trials was the 1945–1946 trial of the major war criminals before the International Military Tribunal (IMT).[456] This tribunal tried 22 political and military leaders of the Third Reich,[457] except for Adolf Hitler, Heinrich Himmler, and Joseph Goebbels, all of whom had committed suicide several months before.[456]
The first Dachau Memorial building was erected in 1960; it is a Catholic chapel in honor of the priests who were imprisoned at Dachau, including Dr. Johannes Neuhäusler, a Bishop from Munich, who was arrested for objecting to the policies of the Nazi government. With Neuhäusler's help, a Carmelite convent was opened in 1964 on the site of the gravel pit just outside the north wall of the camp; the convent has an entrance through one of the guard towers. In the same year, the dilapidated barracks buildings, by now vacated by the refugees, were torn down.

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.
In early 1937, the SS, using prisoner labor, initiated construction of a large complex of buildings on the grounds of the original camp. The construction was officially completed in mid-August 1938 and the camp remained essentially unchanged and in operation until 1945. A crematorium that was next to, but not directly accessible from within the camp, was erected in 1942. KZ Dachau was therefore the longest running concentration camp of the Third Reich. The Dachau complex included other SS facilities beside the concentration camp—a leader school of the economic and civil service, the medical school of the SS, etc. The camp at that time was called a "protective custody camp," and occupied less than half of the area of the entire complex.[13]
Tens of thousands of Jews held in the eastern territories were marched towards the heart of Germany so they could not bear witness to the Allies. Aware that the world had been alerted to the horrors of the camps, the Nazis sought to destroy evidence. In June, Soviet forces liberated the first major camp, known as Majdanek, in Lublin, Poland. The Nazis had burned down the crematorium chimney but had failed to destroy the gas chambers and barracks. Only a few hundred inmates were still alive.
Hitler was obsessed with the idea of the superiority of the “pure” German race, which he called “Aryan,” and with the need for “Lebensraum,” or living space, for that race to expand. In the decade after he was released from prison, Hitler took advantage of the weakness of his rivals to enhance his party’s status and rise from obscurity to power. On January 30, 1933, he was named chancellor of Germany. After President Paul von Hindenburg’s death in 1934, Hitler anointed himself as “Fuhrer,” becoming Germany’s supreme ruler.
The opening of the camp, with a capacity for 5,000 prisoners was announced by Heinrich Himmler, Reichsfuhrer SS at a press conference held on 20 March 1933. The first group of so-called protective-custody, consisting mainly of Communists and Social Democrats was brought to the camp on 22 March 1933. They were guarded by Bavarian state police until the camp was taken over by the SS on 11 April 1933.

In early 1942 the Nazis built killing centres at Treblinka, Sobibor, and Belzec in occupied Poland. The death camps were to be the essential instrument of the “final solution.” The Einsatzgruppen had traveled to kill their victims. With the killing centres, the process was reversed. The victims were taken by train, often in cattle cars, to their killers. The extermination camps became factories producing corpses, effectively and efficiently, at minimal physical and psychological cost to German personnel. Assisted by Ukrainian and Latvian collaborators and prisoners of war, a few Germans could kill tens of thousands of prisoners each month. At Chelmno, the first of the extermination camps, the Nazis used mobile gas vans. Elsewhere they built permanent gas chambers linked to the crematoria where bodies were burned. Carbon monoxide was the gas of choice at most camps. Zyklon-B, an especially lethal killing agent, was employed primarily at Auschwitz and later at Majdanek.
September 21, 1939 - Heydrich issues instructions to SS Einsatzgruppen (special action squads) in Poland regarding treatment of Jews, stating they are to be gathered into ghettos near railroads for the future "final goal." He also orders a census and the establishment of Jewish administrative councils within the ghettos to implement Nazi policies and decrees.
Prisoners in the camp were given guns by some of the liberators and were allowed to shoot or beat to death 40 of the German guards while American soldiers looked on. The German Sheppard guard dogs were shot in their kennels. The bodies of some the dead SS soldiers were later buried in unmarked graves inside the garrison, after their dog tags had been removed; their families were not notified of their deaths. Some of the bodies of the executed SS soldiers were burned in the ovens in the crematorium at Dachau.
In the German parliament, the Nazi party, led by Adolf Hitler, gained popularity. The number of seats Nazis controlled in the parliament rose from 12 in 1928 to 230 in 1932, making them the largest political party. The strong showing guaranteed the Nazi party would need to be part of any political coalition. Believing he could check Hitler’s ambition, President Hindenburg reluctantly made Hitler the Chancellor of Germany on January 30, 1933.

Deputy Fritz Dressel underwent similar daily tortures. He tried to cut his wrist with a piece of glass, but he was discovered while he still showed some signs of life and was transferred to a first-aid station. No sooner was his wound dressed than the Camp Commander, Weckerle, ordered him brought back into the detention call, in spite of the doctor’s warning that under these circumstances he would not be responsible for the consequences. A few hours later he was again “discovered” with the dressing ripped off, lying in a pool of blood, his arms pulled out of their sockets.  When his corpse was taken out of the camp on a dray, the Commander made a remark to the assembled Special Police, which unfortunately I could not understand, but which was answered by the guards with roars of laughter. Captain Ehmann of the Special Police and another man led Leonhart Hausmann, Communist leader of Augsburg, out of the camp to be shot. Ehmann, however, lost his courage and ran away and the other fellow brought the prisoner back. The next day Hausmann was transferred to Ehmann’s labor group, and Ehmann took him out of sight behind some bushes and shot him. The official announcement was “Shot while trying to escape.” Ehmann was apparently reluctant to murder the prisoner, but was finally forced to do so by pressure from his superiors.
At the end of July 1944 there were around 7,300 prisoners interned in the Bergen-Belsen camp complex. At the beginning of December 1944, this number had increased to around 15,000, and in February 1945 the number of prisoners was 22,000. As prisoners evacuated from the east continued to arrive, the camp population soared to over 60,000 by April 15, 1945.
Soon after he became chancellor, Hitler called for new elections in an effort to get full control of the Reichstag, the German parliament, for the Nazis. The Nazis used the government apparatus to terrorize the other parties. They arrested their leaders and banned their political meetings. Then, in the midst of the election campaign, on February 27, 1933, the Reichstag building burned. A Dutchman named Marinus van der Lubbe was arrested for the crime, and he swore he had acted alone. Although many suspected the Nazis were ultimately responsible for the act, the Nazis managed to blame the Communists, thus turning more votes their way.
The Germans invaded the Netherlands, Luxembourg, Belgium, and France in May 1940. In the Netherlands, the Germans installed Arthur Seyss-Inquart as Reichskommissar, who quickly began to persecute the approximately 140,000 Dutch Jews. Jews were forced out of their jobs and had to register with the government. Non-Jewish Dutch citizens protested these measures, and in February 1941 they staged a strike that was quickly crushed.[161] After Belgium's surrender at the end of May 1940, it was ruled by a German military governor, Alexander von Falkenhausen, who enacted anti-Jewish measures against the country's 90,000 Jews, many of whom were refugees from Germany or Eastern Europe.[162]
The camp was liberated on April 15, 1945, by the British 11th Armoured Division.[4] The soldiers discovered approximately 60,000 prisoners inside, most of them half-starved and seriously ill,[5] and another 13,000 corpses, including those of Anne and Margot Frank, lying around the camp unburied.[4] 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.