Sasanian military architecture on Rome's NE frontier. EBERHARD W. SAUER, HAMID OMRANI REKAVANDI, TONY J. WILKINSON and JEBRAEL NOKANDEH, with K. Hopper, G. Ali Abbasi, R. Ainslie, K. Roustaei, E. MacDonald, E. Safari Tamak, J. Ratcliffe, M. Mahmoudi, C. Oatley, M. Ershadi, L. S. Usher-Wilson, A. Nazifi, S. Griffiths, B. Shabani, D. Parker, M. Mousavi, N. Galiatsatos and H. Tolouei, with major contributions by S. Priestman, M. Mashkour, C. M. Batt, D. P. Greenwood, J. Jansen Van Rensburg, F. Caputo, V. Radu, J.-L. Schwenninger, M. Fattahi, R. Gale, I. Poole, B. Hoffmann, R. Evershed and R. Thomas, PERSIA’S IMPERIAL POWER IN LATE ANTIQUITY: THE GREAT WALL OF GORGĀN AND FRONTIER LANDSCAPES OF SASANIAN IRAN. (British Institute of Persian Studie