John H. Kautsky, The Politics of the Aristocratic Empire, 2nd ed. (New Brunswick and London, 1997), p. 374
50
Ibid., p. 177
51
Keegan, History of Warfare, pp. 384–86; John Haldon, Warfare, State and Society in the Byzantine World (London and New York, 2005), pp. 10–11
52
Bruce Lincoln, ‘The Role of Religion in Achmenean Imperialism’, in Nicole Brisch, ed., Religion and Power: Divine Kingship in the Ancient World and Beyond (Chicago, 2008)