Columbia subject headings:
Harvard subject headings:
European Union--Greece.
European Union--Turkey.
Geopolitics--Western countries.
Greece--Foreign relations--Turkey.
Greece--Foreign relations.
Turkey--Foreign relations--Western countries.
Princeton subject headings:
Aegean Sea Region.
European Union--Greece.
European Union--Turkey.
Geopolitics--Middle East.
Greece--Foreign relations--1974-
Greece--Foreign relations--Turkey.
Turkey--Foreign relations--1980-
Turkey--Foreign relations--Greece.