Answer:
Dachau was first concentration camp by the Nazi regime.
Step-by-step explanation:
Dachau the first concentration camp by the Nazi in Germany for the political prisoners such as Social Democrats, Trade Unionists and Communist. Gypsies and Jehovah’s Witnesses also imprisoned there. The prisoners were used as labor to expand the complex. Dachau served as a training ground for the Nazi military, mainly SS units. The camp was established soon after Hitler became Chancellor in 1933.