Michael Green is a freelance writer, researcher, and photographer who specializes in military, transportation, and law enforcement subjects with more than ninety books to his credit. In addition, he has written numerous articles for a variety of national and international military-related magazines.
James D. Brown served twenty years in the U.S. Army as an armor officer with a secondary specialty in research and development. His active-duty service includes a four-year tour as an assistant professor of engineering at the United States Military Academy, where he taught combat vehicle design and automotive engineering.
Christophe Vallier is a freelance photographer specializing in military subjects, his main interest being in historical armored fighting vehicles of all nations.