Columbia subject headings:
National security--Arabian Peninsula.
National security--Persian Gulf Region.
Persian Gulf Region--Economic policy.
Persian Gulf Region--Foreign relations.
Persian Gulf Region--Strategic aspects.
Harvard subject headings:
National security--Persian Gulf Region
Persian Gulf Region--Foreign economic relations.
Persian Gulf Region--Foreign relations.
Persian Gulf Region--Military policy.
Princeton subject headings:
National security--Arabian Peninsula.
National security--Persian Gulf Region.
Persian Gulf Region--Economic policy.
Persian Gulf Region--Foreign relations.
Persian Gulf Region--Strategic aspects.