Identifies the beginnings of the crusades in the seventh century, during which Persia sought to conquer the Byzantine Empire, for which the emperor Heraclius, whose career coincided with the life of the prophet Mohammed, used Christian propaganda to overcome Islam. 10,000 first printing.
Geoffrey Regan was series consultant for The History Channel's documentary series on Great Military Blunders and author of the book of the same name. He is the author of over twenty other books, including "Lionhearts: Richard I, Saladin, and the Era of the Third Crusade".