Now, man has a horror of death. In the bravest, a great sense of duty, which they alone are capable of understanding and living up to, is paramount. But the mass always cowers at sight of the phantom, death. Discipline is for the purpose of dominating that horror by a still greater horror, that of punishment or disgrace. But there always comes an instant when natural horror gets an upper hand over discipline, and the fighter flees. "Stop, stop, hold out a few minutes, an instant more, and you are victor! You are not even wounded yet,--if you turn your back you are dead!" He does not hear, he cannot hear any more. He is full of fear. How many armies have sworn to conquer or perish? How many have kept their oaths? An oath of sheep to stand up against wolves. History shows, not armies, but firm souls who have fought unto death, and the devotion of Thermopylae is therefore justly immortal. Here we are again brought to the consideration of essential truths, enunciated by many men, now forgotten or unknown. To insure success in the rude test of conflict, it is not sufficient to have a mass composed of valiant men like the Gauls or the Germans. The mass needs, and we give it, leaders who have the firmness and decision of command proceeding from habit and an entire faith in their unquestionable right to command as established by tradition, law and society. We add good arms. We add methods of fighting suitable to these arms and those of the enemy and which do not overtax the physical and moral forces of man. We add also a rational decentralization that permits the direction and employment of the efforts of all even to the last man. We animate with passion, a violent desire for independence, a religious fanaticism, national pride, a love of glory, a madness for possession. An iron discipline, which permits no one to escape action, secures the greatest unity from top to bottom, between all the elements, between the commanding officers, between the commanding officers and men, between the soldiers. Have we then a solid army? Not yet. Unity, that first and supreme force of armies, is sought by enacting severe laws of discipline supported by powerful passions. But to order discipline is not enough. A vigilance from which no one may escape in combat should assure the maintenance of discipline. Discipline itself depends on moral pressure which actuates men to advance from sentiments of fear or pride. But it depends also on surveillance, the mutual supervision of groups of men who know each other well.