A second end of the training is to habituate the men so firmly in the performance of certain movements that no emotion can interfere with their action. Upon the battle-field there is nothing left of the exercises of the times of peace, but that which has become a habit, or in a word, an instinct. The soldier must be so trained that he will go on with his work as long as he has the ability to do so. One has said: "It must be the aim of the new discipline to make the private soldier capable of keeping steadfastly in mind for the whole of the day, or even for several days, and striving with all his might to carry out, what he has been told by a superior who is no longer present, and who, for all he may know, is dead." A third end sought in military training is to render the soldier strong and agile, so that he can move with rapidity, sustain long marches, and handle his weapon with dexterity. * * * * * Every consideration in feeding, clothing, sheltering, both men and animals, has but one object,--efficiency. All questions of moral duty, all ideas of the spiritual or immortal interests, are completely submerged beneath the ever-present thought of material force. Power must be had by men, horses, machinery; power, aggressive power, is the all-pervading and all-controlling thought of the army. * * * * * An army is properly an incarnation of the fiend of destruction. Every part of its legitimate work is to destroy. If it constructs bridges and builds roads, erects forts and digs trenches, these are all that it may destroy, or prevent some other incarnation from destroying _it_. Armies lay waste and destroy. Cornfields, orchards, lawns, life, and treasure are all prey for the voracious destroyer. The motive employed in bringing the soldier to the high state of excellence here described is always that of duty. The word "duty" is very prominent and very full of meaning in the army. Military duty is made a moral obligation founded upon patriotism. This sentiment of duty is the moral force in the army that gives dignity to its obedience. The army develops, strengthens, and educates this _sense of duty_, until it becomes supreme. It is this _sense of duty_ which produces endurance to undergo privations, and leads men to be patient under the greatest sacrifices. The physical force which we see in the army depends upon the moral or spiritual which we do not see.