Columbia subject headings:
Harvard subject headings:
Germany--History--20th century.
Militarism--Germany--History--20th century.
Pacifism--Germany--History--20th century.
Peace movements--Germany--History--20th century.
Princeton subject headings:
Germany--History--20th century.
Militarism--Germany--History--20th century.
Pacifism--Germany--History--20th century.
Peace movements--Germany--History--20th century.