ELI5: Explain Like I'm 5

concentration camps

Concentration camps are places where people are sent to live against their will. They often have tall fences, guard towers and guard dogs so people can't leave. In these camps, people can't leave and they have to do what the guards tell them to do. They are usually treated very badly, given little food and have to work in bad conditions. It's a very bad place to be and nobody wants to be in one.