Columbia subject headings:
Europe--Military policy.
National security--Persian Gulf Region.
North Atlantic Treaty Organization.
United States--Military policy.
United States. Central Command.
Harvard subject headings:
Europe--Military policy.
National security--Persian Gulf Region
North Atlantic Treaty Organization
Persian Gulf Region--National security.
United States--Military policy.
United States. Central Command.
Princeton subject headings:
Europe--Military policy.
National security--Persian Gulf Region.
North Atlantic Treaty Organization.
United States--Military policy.
United States. Central Command