Columbia subject headings:
Harvard subject headings:
Civil-military relations--Germany--History--19th century.
Germany--Armed Forces--Civil functions--History.
Germany--Armed Forces--Operations other than war.
Germany--Armed Forces--Stability operations.
Internal security--Germany--History--19th century.
Internal security--Germany--History--20th century.
National security--Germany--Rhine Province--History--19th century.
National security--Germany--Rhine Province--History--20th century.
National security--Germany--Westphalia--History--19th century.
National security--Germany--Westphalia--History--20th century.
Prussia (Germany)--Armed Forces--Civil functions--History.
Princeton subject headings:
Civil-military relations--Germany--History--19th century.
Germany--Armed Forces--Civil functions--History.
Prussia (Germany)--Armed Forces--Civil functions--History.