Answer: set up for anyone who was in opposition to Hitler.
Concentration camps are designated camps where people are detained. These camps were one of the most important components of the Nazi regime. Originally, these prisons were set up for anyone who was in opposition to the party. Later on, they became mostly associated with the imprisonment of Jewish people. The first camp was opened in March 1933. Concentration camps operated outside of the judicial system, so prisoners were not tried or convicted of any crime.
