Columbia subject headings:
National security--United States.
Nuclear weapons--United States.
United States--Defenses.
United States--Military policy.
Harvard subject headings:
National security--United States
Nuclear weapons--United States
United States--Defenses.
United States--Military policy.
Princeton subject headings:
National security--United States.
Nuclear weapons--United States.
United States--Defenses.
United States--Military policy.