By Ranulph Fiennes
By Nikki R. Keddie
By Michael Hodges
By Andrew D. Lambert, Stephen Badsey
By R G Grant
By George Forty
By Rowland White
By Malcolm Gladwell
By Terry C. Treadwell, Alan Wood
By David Watkins, John Wilson
By Christopher Spring
By Paul Kennedy
By Patrick Brogan
By Jon E. Lewis
By Horne, Alistair
By Simon Parkin
By Rod Thornton (King's College, London)
By C. A. MacDonald
By Dan Van der Vat
By Joshua Levine