Columbia subject headings:
Geopolitics--Turkey--Congresses.
National security--Turkey--Congresses.
Terrorism--Turkey--Congresses.
Turkey--Ethnic relations--Congresses.
Turkey--History--20th century--Congresses.
Turkey--Religion--Congresses.
Harvard subject headings:
National security--Turkey--Congresses.
Terrorism--Turkey--Congresses.
Princeton subject headings: