Columbia subject headings:
Byzantine Empire--History, Military--527-1081.
Justinian I, Emperor of the East, 483?-565.
Harvard subject headings:
Byzantine Empire--History, Military--527-1081.
Justinian I, Emperor of the East, 483?-565
Princeton subject headings:
Byzantine Empire--History, Military--527-1081.
Justinian I, Emperor of the East, 483?-565.