Columbia subject headings:
Byzantine Empire--History, Military.
Military art and science--Byzantine Empire.
War and civilization--Byzantine Empire.
War and society--Byzantine Empire.
Harvard subject headings:
Byzantine Empire--History, Military.
Military art and science--Byzantine Empire.
War and civilization--Byzantine Empire.
War and society--Byzantine Empire.
Princeton subject headings:
Byzantine Empire--History, Military.
Military art and science--Byzantine Empire.
War and civilization--Byzantine Empire.
War and society--Byzantine Empire.