Robert R. Leonhard, PhD is a game designer, retired army officer, author, researcher, chess player, and Bible teacher. He designed the game Hero of Weehawken and wrote the books The Art of Maneuver, Fighting by Minutes, and The Principles of War for the Information Age. He has been working at a research lab as a national security analyst at the Johns Hopkins Applied Physics Laboratory. He is a retired Army lieutenant colonel after 24 years in the U.S. Army mostly in the mechanized infantry. He obtained his PhD in 19th-century U.S. history from West Virginia University.