"Warfare in antiquity: History of the Art of War, Volume I" - is a book dealing with the art of warfare in antiquity. It's written by distinguished German historian Hans Delbrück (1848 - 1929). From Persian wars to the rise of Greece, Delbrück studies war ruses of the nations that lived many years ago, including strategic victories of Julius Caesar, his crusade against Helvetians, conquest of Gaul and the tactical skills that helped him to become one of the greatest generals of the ancient Rome.