Columbia subject headings:
Rome--Army--History.
Rome--History, Military--30 B.C.-476 A.D.
Harvard subject headings:
Byzantine Empire--History--To 527.
Military art and science--History--To 500
Rome--Army.
Rome--History--Empire, 284-476.
Rome--Military antiquities
Princeton subject headings:
Byzantine Empire--History--To 527.
Military art and science--History--To 500.
Military art and science--Rome.
Rome--Army.
Rome--History--Empire, 284-476.