Nazi concentration camps were facilities established by the Nazi regime in Germany and occupied territories during World War II. They were used to detain and persecute various groups, including Jews, political dissidents, Roma, and others deemed undesirable. Conditions in these camps were often brutal, with forced labor, inadequate food, and harsh treatment leading to high mortality rates. Many concentration camps, such as Auschwitz and Dachau, became sites of mass extermination and human rights abuses. The camps played a central role in the Holocaust, where millions of people were systematically murdered. The legacy of these camps serves as a reminder of the dangers of hatred and intolerance.