Columbia subject headings:
Caucasus, South--Foreign relations--Turkey.
Turkey--Foreign relations--Caucasus, South.
Harvard subject headings:
Caucasus, South--Foreign relations--Turkey.
Turkey--Foreign relations--Caucasus, South.
Princeton subject headings:
Caucasus--Foreign relations--Turkey.
Turkey--Foreign relations--Caucasus.
Turkey--History--Mehmed V, 1909-1918.
World War, 1914-1918--Caucasus.
World War, 1914-1918--Turkey.