Maybe cause he felt like it gosh.
The person in charge for the Nazi concentration camps was Heinrich Himmler. Himmler committed suicide in May 1945.
They were run by the SS.
At first (until July 1934) the Nazi concentration camps were run by the SA (Stormtroopers, 'Brownshirts'), but from mid 1934 they were run by the SS. Later the SS was also in charge of the 'Final Solution' and ran the extermination camps in Poland. The concentration camps were run by the SS-Totenkopfverbände (SS Death's Head units).
They were just government-run camps that were run by military officers to take care of the captured Jews.
No. Poland holds no responsibility for the concentration camps, they were in Poland, but they were owned and run by the Germans.
If you mean camps run by the Armenian government the answer is none.
The areas where the concentration camps were located was under Nazi control e.g. Auschwitz in Poland. Germany occupied it in 1939.
All Nazi concentration camps and death camps were run by the SS (except in 1933-34).
All the concentration camps and extermination camps were run by the SS.
In the very early stages (1933-34) concentration camps were run by the SA and SS. From 1934 onwards they were run (and staffed) by the SS.
Like all Nazi concentration camps, it was run by the SS.
Many German women worked in the armaments industry. Incidentally, the number 'running concentration camps' was tiny.