Clayton K.S. Chun, PhD, is on the US Army War College faculty at Carlisle Barracks, Pennsylvania, where he teaches courses on national security, strategy, and economics. He completed a military career in the US Air Force and has published work in the fields of national security, military history, and economics.Howard Gerrard studied at the Wallasey School of Art and has been a freelance designer and illustrator for over 20 years. He has worked for a number of publishers and is an associate member of the Guild of Aviation Artists. He has won both the Society of British Aerospace Companies Award and the Wilkinson Sword Trophy, and has illustrated a number of books for Osprey. Howard lives and works in Kent.