John D. Gresham lives in Fairfax, Va. He is an author, researcher, game designer, photographer, and military commentator with numerous publishing, design, speaking, and television appearance credits in his portfolio. He was the primary researcher and partner to Tom Clancy on his best-selling series of non-fiction “guided tour” books about military units. These include Submarine (1993), Armored Cav (1994), Fighter Wing (1995), Marine (1996), Airborne (1997), Carrier (1999), and Special Forces (2001), all published by Berkley Books. He also is the award-winning co-designer of Supermarina I and Supermarina II (Clash of Arms Games, 1996 and 1997), naval wargames based upon Larry Bond’s award-winning Command at Sea game system.

Gresham’s book DEFCON-2 (with Norman Polmar), is a new single-volume history of the Cuban Missile Crisis and was published by John Wiley & Sons in 2006. His latest book, Beyond Hell and Back (2007, with Dwight Jon Zimmerman), describes seven key U.S. special operations missions. He is currently working on a pair of books, one on post-9/11 Medal of Honor recipients, and the other on the F-22A Raptor fighter. He has provided interviews, commentary, research, screenwriting, and production assistance for various documentary series produced for TLC and the History, Military, New York Times, Discovery, and National Geographic channels. His most recent book, Uncommon Valor, covering six Medal of Honor recipients and their deeds in Iraq and Afghanistan, is co-authored with Dwight Jon Zimmerman.