The torpedo was the greatest single game-changer in the history of naval warfare. For the first time it allowed a small, cheap torpedo-firing vessel—and by extension a small, minor navy—to threaten the largest and most powerful warships afloat. The traditional concept of seapower, based on huge fleets of expensive capital ships, required radical rethinking because of this important naval weapon. This book is a broadranging international history of the weapon, tracing not only...