Columbia subject headings:
Europe, Central--Foreign relations--Soviet Union.
Soviet Union--Defenses.
Soviet Union--Foreign relations--1945-1991.
Soviet Union--Foreign relations--Europe, Central.
Harvard subject headings:
Europe, Eastern--Foreign relations--Soviet Union.
Europe, Eastern--Politics and government--1945-1989.
National security--Soviet Union
Soviet Union--Foreign relations--Europe, Eastern.
Princeton subject headings: