He was educated at various schools and universities, including Oxford, where he took his Doctorate in Ancient History at Corpus Christi College. In similar fashion he has taught at various universities including Oxford, where he is now Fellow and Director of Studies in Ancient History at St Benets Hall, and Lecturer in Ancient History at Lincoln College.

His main scholarly research interests are Greek culture under the Roman empire (thinking about the compromises and contradictions involved when an old and sophisticated culture is conquered and ruled by what it considers a younger and less civilised power) and warfare in classical antiquity (looking at how war was both done and thought about by Greeks and Romans). He has published numerous chapters in books, and articles and reviews in scholarly journals becoming an internationally recognised scholar in these fields.