Columbia subject headings:
Arab countries--Commerce--Europe.
Arab countries--Foreign relations--Europe.
Europe--Commerce--Arab countries.
Europe--Foreign relations--Arab countries.
National security--Arab countries.
National security--Europe.
Harvard subject headings:
Arab countries--Commerce--Europe.
Arab countries--Foreign relations--Europe.
Europe--Commerce--Arab countries.
Europe--Foreign relations--Arab countries.
National security--Arab countries
National security--Europe
Princeton subject headings:
Arab countries--Commerce--Europe.
Arab countries--Foreign relations--Europe.
Europe--Commerce--Arab countries.
Europe--Foreign relations--Arab countries.
National security--Arab countries.
National security--Europe.