Columbia subject headings:
Germany--Foreign relations--1990-
Germany--Foreign relations--Philosophy.
Hamburg (Germany)--Relations.
International cooperation.
International relations--History.
International relations--Philosophy.
Political leadership.
Harvard subject headings:
Princeton subject headings:
Germany--Foreign relations--1990-
Germany--Foreign relations--Philosophy.
Hamburg (Germany)--Relations.
International cooperation.
International relations--History.
International relations--Philosophy.
Political leadership.