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Between 1933 and 1945, Nazi Germany and its allies established more than 44,000 camps and other incarceration sites (including ghettos). The perpetrators used these sites for a range of purposes, including forced labor, detention of people thought to be enemies of the state, and mass murder.

Nazi concentration camps, 1933–34

Nazi concentration camps, 1933-1934 [LCID: ger72050]

The first concentration camps in Germany were established soon after Adolf Hitler's appointment as chancellor in January 1933. The Storm Troopers (SA) and the police established concentration camps beginning in February 1933. These camps were set up to handle the masses of people arrested as alleged political opponents. They were established on the local level throughout Germany. Gradually, most of these early camps were disbanded and replaced by centrally organized concentration camps under the exclusive jurisdiction of the SS (Schutzstaffel; the elite guard of the Nazi state). Dachau was the only concentration camp opened in 1933 that remained in operation until 1945, and was the model for the Nazi concentration camp system that replaced the earlier camps.

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Nazi concentration camps, 1933–39

Nazi concentration camps, 1933-1939 [LCID: ger72160]

The first concentration camps in Germany were established soon after Hitler's appointment as chancellor in January 1933. The Storm Troopers (SA) and the police established concentration camps to handle the masses of people arrested as alleged political opponents of the regime. These camps were established on the local level throughout Germany. Gradually, most of these early camps were disbanded and replaced by centrally organized concentration camps under the exclusive jurisdiction of the SS (Schutzstaffel; the elite guard of the Nazi state). By 1939, seven large concentration camps had been established. Besides Dachau, they were Sachsenhausen (1936) north of Berlin, Buchenwald (1937) near Weimar, Neuengamme (1938) near Hamburg, Flossenbürg (1938), Mauthausen (1938), and Ravensbrück (1939).

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Nazi camps in occupied Poland, 1939-1945

Nazi camps in occupied Poland, 1939-1945 [LCID: pol72110]

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Killing Centers in German-occupied Poland, 1942

Killing centers in occupied Poland, 1942 [LCID: pol72090]

Killing centers (also referred to as "extermination camps" or "death camps") were designed to carry out genocide. Between 1941 and 1945, the Nazis established five killing centers in German-occupied Poland—Chelmno, Belzec, Sobibor, Treblinka, and Auschwitz-Birkenau (part of the Auschwitz camp complex). Chelmno and Auschwitz were established in areas annexed to Germany in 1939. The other camps (Belzec, Sobibor, and Treblinka) were established in the General Government (an administrative unit of occupied Poland). Auschwitz functioned as concentration and forced-labor camps, as well as a killing center. The overwhelming majority of the victims of the killing centers were Jews. An estimated 2.7 million Jews were killed in these five killing centers as part of the Final Solution. Other victims murdered in the killing centers included Roma (Gypsies) and Soviet prisoners of war.

On this map, the Majdanek camp is labeled as a killing center. In the past, many scholars counted the Majdanek camp (located just outside the city of Lublin) as a sixth killing center. However, based on newer research, Lublin-Majdanek is usually classified as a concentration camp. According to this research, German authorities used Majdanek primarily as a place to concentrate Jews who were being temporarily spared for use as forced laborers. Occasionally, especially after Belzec ceased operating in late 1942, Jews were sent to Majdanek as part of Operation Reinhard to undergo selection. Jews selected as unfit for labor were murdered at Lublin-Majdanek either by shooting or in the camp's gas chambers.

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Major Nazi camps in Greater Germany, 1944

Major Nazi camps in Greater Germany, 1944 [LCID: gge72050]

The Nazi camp system expanded rapidly after the beginning of World War II in September 1939, as forced labor became important in war production. Labor shortages in the German war economy became critical after German defeat in the battle of Stalingrad in 1942-1943. This led to the increased use of concentration camp prisoners as forced laborers in German armaments industries. Especially in 1943 and 1944, hundreds of subcamps were established in or near industrial plants. Subcamps were generally smaller camps administered by the main camps, which supplied them with the required number of prisoners. Camps such as Auschwitz in Poland, Buchenwald in central Germany, Gross-Rosen in eastern Germany, Natzweiler-Struthof in eastern France, Ravensbrueck near Berlin, and Stutthof near Danzig on the Baltic coast became administrative centers of huge networks of subsidiary forced-labor camps.

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Major Nazi camps in Europe, January 1944

Major Nazi camps in Europe, January 1944 [LCID: eur72160]

Throughout German-occupied Europe, the Germans arrested those who resisted their domination and those they judged to be racially inferior or politically unacceptable. People arrested for resisting German rule were mostly sent to forced-labor or concentration camps. The Germans deported Jews from all over occupied Europe to extermination camps in Poland, where they were systematically killed, and also to concentration camps, where they were used for forced labor. Transit camps such as Westerbork, Gurs, Mechelen, and Drancy in western Europe and concentration camps like Bolzano and Fossoli di Carpi in Italy were used as collection centers for Jews, who were then deported by rail to the extermination camps. According to SS reports, there were more than 700,000 prisoners registered in the concentration camps in January 1945.

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Major Nazi camps in Austria

Major Nazi camps in Austria [LCID: aus72030]

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Nazi camps in the Low Countries, 1940-1945

Nazi camps in the Low Countries, 1940-1945 [LCID: ben72030]

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Major Nazi camps in Italy

Major Nazi camps in Italy [LCID: ita72060]

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Nazi camps in the Baltic Countries, 1941-1945

Nazi camps in the Baltic Countries, 1941-1945 [LCID: bal22030]

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Major Nazi and Axis camps in southern Europe

Major Nazi and Axis camps in southern Europe [LCID: eur62840]

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Nazi camps in Norway and Denmark, 1940-1945

Nazi camps in Norway and Denmark, 1940-1945 [LCID: sca72020]

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Liberation of major Nazi camps, 1944-1945

Liberation of major Nazi camps, 1944-1945 [LCID: gge72080]

As Allied troops moved across Europe in a series of offensives on Germany, they began to encounter and liberate concentration camp prisoners, many of whom had survived death marches into the interior of Germany. Soviet forces were the first to approach a major Nazi camp, reaching the Majdanek camp near Lublin, Poland, in July 1944. Surprised by the rapid Soviet advance, the Germans attempted to demolish the camp in an effort to hide the evidence of mass murder. The Soviets also liberated major Nazi camps at Auschwitz, Stutthof, Sachsenhausen, and Ravensbrück. US forces liberated the Buchenwald, Dora-Mittelbau, Flossenbürg, Dachau, and Mauthausen camps. British forces liberated camps in northern Germany, including Neuengamme and Bergen-Belsen.

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Articles that Reference This Item

Prisoners of Sachsenhausen at forced labor.
Article Concentration Camps, 1933–39
Prisoners at forced labor in the Neuengamme concentration camp. [LCID: 6031]
Article Concentration Camps, 1939–42

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