Columbia subject headings:
Europe--Defenses.
North Atlantic Treaty Organization--Armed Forces.
Nuclear weapons.
Warsaw Treaty Organization--Armed Forces.
Harvard subject headings:
Europe--Defenses.
North Atlantic Treaty Organization--Armed Forces.
Nuclear weapons.
Warsaw Treaty Organization--Armed Forces.
Princeton subject headings:
Arms control.
Europe--Defenses.
Nuclear weapons.
Soviet Union--Military policy.
United States--Military policy.