Columbia subject headings:
Germany--Armed Forces--Mobilization--History--19th century.
Germany--Armed Forces--Mobilization--History--20th century.
Prussia (Germany)--Armed Forces--Mobilization--History--19th century.
Harvard subject headings:
Germany--Armed Forces--Mobilization--History--19th century.
Germany--Armed Forces--Mobilization--History--20th century.
Prussia (Germany)--Armed Forces--Mobilization--History--19th century.
Princeton subject headings: