Columbia subject headings:
Germany--Foreign relations--20th century.
Germany--Relations--Japan.
Japan--Foreign relations--20th century.
Japan--Relations--Germany.
Harvard subject headings:
Germany--Foreign relations--20th century.
Germany--Relations--Japan.
Japan--Foreign relations--20th century.
Japan--Relations--Germany.
Princeton subject headings:
Germany--Relations--Japan--Congresses.
Japan--Relations--Germany--Congresses.