Columbia subject headings:
Harvard subject headings:
German reunification question (1949-1990)--Congresses
Germany (East)--Military policy--Congresses.
Germany (West)--Military policy--Congresses.
Germany--History--20th century--Congresses.
Germany--History--Unification, 1990--Congresses.
North Atlantic Treaty Organization--History--Congresses.
Warsaw Treaty Organization--History--Congresses.
Princeton subject headings:
Germany (East)--Military policy--20th century--Congresses.
Germany (West)--Military policy--20th century--Congresses.
Germany--History--20th century--Congresses.
Germany--History--Unification, 1990--Congresses.