B. Wars are not only against governments, but can be against kinds of people, to destroy an identified ethnic or other group in whole or part, and because the persons are within that group. We are accustomed to attaching genocide to holocaust, but once in a while get the real definition.
The international legal definition comprises
1. the mental element of intent to bring about that result; and
2. the physical elements of
a) causing death, or serious harm in body or mind; or
b)deliberate infliction of conditions calculated to bring about the intended result; or
c) imposing steps to prevent births in that group, or
d) forcing transfer of children in the group to another groups.
Punishable: These can be direct acts, or attempts to so act, or complicity while others commit such acts or attempts, or conspiracy, or "direct and public" incitement, See http://www.preventgenocide.org/genocide/officialtext.htm/
Theresienstadt. Terezin. A stop on the way to genocide. The place. People had to be rounded up, sent to a dispersal center, held there for transports, records kept of who went where and when (Good German Methodology), the activities, the intent, the complicity, the deaths, the conditions. Genocide.
Terezin was an old walled- garrison town, founded in 1782 by Austrian Emperor Franz Josef, and named for his mother, Maria Theresa. Theresienstadt. There are barracks, parade grounds, thick walls, defensive points, residences. It was disused for a time, then housed a famous prisoner from WWI: Gavrilo Princip, the Serbian national who assassinated Archduke Ferdinand, helping trigger WWI. See http://w3.salemstate.edu/~cmauriello/pdf_his102/princips.pdf/
The Nazis then recycled Theresienstadt, Terezin in the Czech language, as a collection center, a place to collect Jews and other targeted undesirable people, intern them, keep them for further transit, and send them out by the thousands in cattle car trains.
It then becomes a starting point, where many families track their members, thanks to German record-keeping and access to them through sittes like Yad Vashem. See http://www.yadvashem.org/yv/en/holocaust/about/03/terezin.asp. Some family members have published those records, see The Guggenheim File, book De Akte Guggenheim, by Sylvia (Guggenheim) Griffiths. Highlight in your own copy all who were in Terezin at some point.
It is also a near-end, or ending point, for those who died because of the conditions, or were transported out to their deaths, see Places of Petr Ginz, a child diarist who ultimately died at Auschwitz.
D. A Photo Walkabout.
Arrive in the evening, with rain looming, and no people walking about, and even buildings in reasonable condition look stark.