Columbia subject headings:
Geopolitics--Persian Gulf Region.
National security--Persian Gulf Region.
Persian Gulf Region--Strategic aspects.
Harvard subject headings:
Persian Gulf Region--History, Military.
Persian Gulf Region--Military relations.
Persian Gulf Region--Politics and government.
Persian Gulf Region--Strategic aspects.
Princeton subject headings:
Persian Gulf Region--History, Military.
Persian Gulf Region--Military relations.
Persian Gulf Region--Politics and government.
Persian Gulf Region--Strategic aspects.