Work for the armaments industryQuarryingMining
Making ammunition
They dug soil
Children did not work in the camps.
labor and concentration camps
You need to specify the kind of camps: Boy Scout camps, summer camps, military training camps, concentration camps.
Concentration camps , transit camps , forced labour camps (aka) "work camps" , and death camps.
They were forced into labor camps like slaves, and given back-breaking work. Many died.They were forced into labor camps like slaves, and given back-breaking work. Many died.
There were about 20 Concentration Camps, but there were many sub-camps.
There were concentration camps in the Holocaust. The concentration camps were basically work/death camps.
Initially those who could not work, but eventually everyone on the list of undesirables.
They were sent to concentration camps ...