Columbia subject headings:
Europe, Eastern--Military relations--Soviet Union.
Soviet Union--Military relations--Europe, Eastern.
Warsaw Treaty Organization--Armed Forces.
Harvard subject headings:
Europe, Eastern--Military relations--Soviet Union.
Soviet Union--Military relations--Europe, Eastern.
Warsaw Treaty Organization--Armed Forces.
Princeton subject headings:
Europe, Eastern--Military relations--Soviet Union.
Soviet Union--Military relations--Europe, Eastern.
Warsaw Treaty Organization--Armed Forces.