Columbia subject headings:
Harvard subject headings:
Germany--Armed Forces--History--20th century.
Germany--History, Naval--20th century.
Germany. Marine--History--20th century.
Marines--Germany--History--20th century.
Princeton subject headings:
Germany--Armed Forces--History--20th century.
Germany--History, Naval--20th century.
Germany. Marine--History--20th century.
Marines--Germany--History--20th century.