Simon Dunstan is a well-established author, filmmaker and photographer in the field of military history. He specializes in armoured warfare, a field in which he has been writing for decades. His books have covered topics such as helicopter and armoured warfare in Vietnam, the Challenger 1 Main Battle Tank, the British Guards and armoured warfare in Korea. Simon lives and works in London.Tony Bryan is a freelance illustrator of many years’ experience. He worked for a number of years in Military Research and Development, and has produced many illustrations for partworks, magazines and books.