I'm not sure that Concentration Camps should be the top category. Many prioners in the camps were not Jews, and were held as prisoners for other reasons than just belonging to a certain race. The Telavåg case is an example of this, they were all civil Norwegian men sent to Germany for punishment as a collective revenge for opposing the nazis. In the beginning of the war, the war/political prisoners and the jews were mostly kept separated, but in 1944 and 1945 the prisoners had to be evacuated from the camps in eastern Europe as the Russians made progress, and the prisoners were then mixed.
The women and children from Telavåg were sent to a school in Hardanger, also without any trial, but I don't think it should be categorized as a concentration camp, but maybe the term internment camp would fit. In some cases it can as well be difficult to differentiate between a camp and a prison. This leads me to an example of why my first thought of making categories combining the physical camp and happenings, might not be a good idea. The Abu Graib prison was used by the Iraqi state to keep political prisoners, but after the American invasion, it was used to keep war prisoners. After the German capitulation, many German soldiers were kept in the camps earlier used for Jews, communists etc.
Many of the prisoners in the nazi camps went through a trial (of course they were not fair in most cases), and some camps were just transit camps. In Norway, the camps like Ulven, Espeland and Grini were mostly used for political prisoners.
Further, we have the Russian gulags, Guantanamo, the Uyghur camps in China, and other forms of mass detention, with or without trials. We also have other means of racial seggregation without considering them as concentration camps, like the jewish ghettos in Europe, the Indian reservations and the townships in South-Africa.
In an attempt to conclude, I think we should have a top level for internment camps, subcategories for POW camps, labor camps and extermination camps. Some camps would be placed in more then one sub-category, and some camps will also be placed in the category "Holocaust Camps". Under the top category we could have the national subcategories like "Norway, Internment Camps". The categories for each camp should be renamed, i.e. from "Holocaust Camps, Bergen-Belsen" to "Bergen-Belsen Internment Camp".
