The CSS Hunley was the first true operational submarine to attack and sink a warship while at war. Submarines were t a new theory, DaVinci had designed one. One had been tried in the American Revolution albeit unsuccessfully. The American Civil War is touted as being the first modern war. This was due to many factors, most of them techlogical. Steam trains and ships were transporting troops to battlefields and firing naval salvos at targets. Compressed air was being used for different and unique purposes. The ability for mankind to operate under the waves was w a fact and t a Jules Verne fantasy. But like most techlogy, the kw how to extract the maximum ability lagged far behind the invention. The men that volunteered to participate in the radical change to naval warfare were t suicidal, just inexperienced. Faith in new techlogies is always dependent on proof of performance. Cynicism and skepticism are always in direct confrontation with the misunderstood or unfamiliar.