Samuel Nan-Chiang Lieu is Professor of Ancient History and Co-Director of the Ancient History Documentary Research Centre, Macquarie University. He is the author of many books including The Roman Eastern Frontier and the Persian Wars II AD 363 630 (with G. Greatrex, 2002), From Constantine to Julian: Pagan and Byzantine Views (with D. A. S. Montserrat, 1996), The Roman Eastern Frontier and the Persian Wars AD 226 363 (with M. Dodgeon, 1991, revised 1994, 1996).