Columbia subject headings:
Iran--Relations--Iraq.
Iran-Iraq War, 1980-1988.
Iraq--Relations--Iran.
Iraq--Relations--Kuwait.
Iraq-Kuwait Crisis, 1990-1991--Causes.
Kurds--Persian Gulf Region.
Kuwait--Relations--Iraq.
Petroleum industry and trade--Persian Gulf Region.
Harvard subject headings:
Princeton subject headings:
Iran--Relations--Iraq.
Iran-Iraq War, 1980-1988.
Iraq--Relations--Iran.
Iraq--Relations--Kuwait.
Iraq-Kuwait Crisis, 1990-1991--Causes.
Kurds--Persian Gulf Region.
Kuwait--Relations--Iraq.
Petroleum industry and trade--Persian Gulf Region.