Columbia subject headings:
Caucasus--History, Military.
Russia--History, Military--To 1801.
Russia--History--1533-1613.
Russia--History--To 1533.
Turkey--History, Military.
Turkey--History--1453-1683.
Turkey--History--Mehmed II, 1451-1481.
Harvard subject headings:
Princeton subject headings:
Caucasus--Foreign relations--Turkey.
Caucasus--History.
Turkey--Foreign relations--Caucasus.
Turkey--History--1453-1683.