Peter HarrisonPeter Harrison is a retired medical practitioner with a lifelong interest in military architecture. He has written on fortified churches in La Thierache in France, Peloponnesian castles and fortresses, the fortified village of Ushguli and the a Maori. Boydell and Brewer published his book Castles of God; Fortified Religious Buildings of the World in 2004 and it was shortlisted for the Longman-History Today Book of the Year Award in 2005. Read More Read Less