A labor camp is a simplified detention facility where inmates are engaged in forced labor. Labor camps have many common aspects with slavery and with prisons. Conditions at labor camps vary widely depending on the operators.
In the Soviet Union, a synonym, Labor colony was also in use; more exactly, "Corrective labor colony", (исправительно-трудовая колония, ИТК).
Notable labor camps
Imperial Russia operated a system of remote Siberian forced labor camps as part of its regular judicial system, called katorga. Though conditions were difficult, they were mild compared to those of later Soviet camps.
The Soviet government took over the already extensive katorga system and expanded it immensely, eventually organizing the Gulag to run the camps. These camps were notorious for their extremely rough conditions; new prisoner death rate was as high as 80% at some camps. During and after the Great Purges, the Gulag camps housed millions of prisoners. Stalin used them both as a source of cheap labor, and as indirect extermination camps.
Nazis operated many extremely brutal concentration camps, which provided free forced labor for industrial and other jobs during World War II. There were several categories of Arbeitslager in Nazi system, for different categories of inmates.
The Khmer Rouge operated labor camps in Cambodia following their seizure of power, for the "rehabilitation" of the (loosely defined) bourgeois classes.
Camps were an essential part of the Nazis' systematic oppression and mass murder of Jews, political adversaries, and others considered socially and racially undesirable.
The death camps proved to be a better, faster, less personal method for killing Jews, one that would spare the shooters, not the victims, emotional anguish.
The total figure for the Jewish genocide, including shootings and the camps, was between 5.2 and 5.8 million, roughly half of Europe's Jewish population, the highest percentage of loss of any people in the war.