: a place where large numbers of people (such as prisoners of war, political prisoners, refugees, or the members of an ethnic or religious minority) are detained or confined under armed guard —used especially in reference to camps created by the Nazis in World War II for the internment and persecution of Jews and other prisoners The Nazi soldiers hauled [Mordechai] Strigler off to a concentration camp, and carved swastikas into his cheeks and forehead with a razor blade. Over the next five years, he was sent from one concentration camp or slave-labor camp to another.— David RemnickShe ended up dying in a concentration camp, just a few months before she would have been liberated.— Marilyn ReynoldsThe V2 killed thousands of British civilians while 20,000 concentration camp inmates died as slave labourers during its manufacture in the closing stages of the second world war.— Anna Tomforde et al. — see also death camp
Auschwitz originally was conceived as a concentration camp, to be used as a detention center for the many Polish citizens arrested after Germany annexed the country in 1939. These detainees included anti-Nazi activists, politicians, resistance members and luminaries from the cultural and scientific communities. Once Hitler’s Final Solution became official Nazi policy, however, Auschwitz was deemed an ideal death camp locale. For one thing, it was situated near the center of all German-occupied countries on the European continent. For another, it was in close proximity to the string of rail lines used to transport detainees to the network of Nazi camps.
In Birkenau, which was built anew on the site of a displaced village, only a small number of historic buildings have survived. Due to the method used in constructing those buildings, planned as temporary structures and erected in a hurry using demolition materials, the natural degradation processes have been accelerating. All efforts are nevertheless being taken to preserve them, strengthen their original fabric and protect them from decay.
In November 2015 the Swiss foundation which owns the rights to The Diary of Anne Frank, the Anne Frank Fonds, added Frank's father, Otto, as a co-author. Otto was added as an author to extend the copyright of the work, which would have expired on December 31, 2015, 70 years after Anne's death. If the authorship change goes unchallenged, the new copyright will allow Anne Frank Fonds to retain control of publication of the diary until 2050. Legal experts advised officials at the Anne Frank Fonds that adding Frank's father Otto as a co-author was justified, because he helped put together the final draft of the diary and “created new work” by editing and reshaping it.
When the Nazis came to power in Germany, they quickly moved to suppress all real and potential opposition. The general public was intimidated by the arbitrary psychological terror that was used by the special courts (Sondergerichte). Especially during the first years of their existence when these courts "had a strong deterrent effect" against any form of political protest.