Columbia subject headings:
Harvard subject headings:
Geopolitics--Germany--History--20th century.
Geopolitics--Japan--History--20th century.
Germany--Foreign relations--Japan.
Haushofer, Karl, 1869-1946
Japan--Foreign relations--Germany.
Princeton subject headings:
Geopolitics--Germany--History--20th century.
Geopolitics--Japan--History--20th century.
Haushofer, Karl, 1869-1946.