neither, ghettos or Jewish quarters are an old concept.
Ghettos
Jews were taken by the Germans because the Germans, more spoken Hitler blamed the war on the Jews
Ghettos were the places they kept the Jews. The ghettos were isolated, enclosed communities that the Germans kept the Jews in. Ghettos were where the Jews were forced to live, under horrible conditions.
basically as soon as the Germans occupied a country, they would put the Jews into ghettos.
The Jews.
for a price.
All non-Jews had to move out.
I presume that you mean the ghettos, concentration camps, and death camps. Ghettos were closed off portions of towns and cities, most famously the Warsaw Ghetto, where Jews were forced to live. The ghettos were gradually liquidated, and the Jews sent to concentration and death camps as quickly as the Germans could manage.
The ghettos was getting too overcrowded so another solution had to be found for what to do with the Jews.
because hitler forced them to
because he was hiltler.
Not many were captured in the ghettos, as the Germans did not venture in very much and when they wanted any of the Jews from the ghetto, they just asked for them.