Columbia subject headings:
Conference on Security and Cooperation in Europe (Organization)
Germany (East)--Foreign relations.
National security--Germany (East)
Harvard subject headings:
Conference on Security and Cooperation in Europe (Organization)
Germany (East)--Foreign relations.
National security--Germany (East)--History.
Princeton subject headings:
Conference on Security and Cooperation in Europe (Organization)
Germany (East)--Foreign relations.
National security--Germany (East)--History.