Against the far superior worth which the destruction of the enemy’s armed force has over all other means stands the expense and risk of this means, and it is only to avoid these that any other means are taken. That these must be costly stands to reason, for the waste of our own military forces must, _ceteris paribus_, always be greater the more our aim is directed upon the destruction of the enemy’s power. The danger lies in this, that the greater efficacy which we seek recoils on ourselves, and therefore has worse consequences in case we fail of success. Other methods are, therefore, less costly when they succeed, less dangerous when they fail; but in this is necessarily lodged the condition that they are only opposed to similar ones, that is, that the enemy acts on the same principle; for if the enemy should choose the way of a great decision by arms, _our means must on that account be changed against our will, in order to correspond with his_. Then all depends on the issue of the act of destruction; but of course it is evident that, _ceteris paribus_, in this act we must be at a disadvantage in all respects because our views and our means had been directed in part upon other objects, which is not the case with the enemy. Two different objects of which one is not part, the other exclude each other, and therefore a force which may be applicable for the one may not serve for the other. If, therefore, one of two belligerents is determined to seek the great decision by arms, then he has a high probability of success, as soon as he is certain his opponent will not take that way, but follows a different object; and every one who sets before himself any such other aim only does so in a reasonable manner, provided he acts on the supposition that his adversary has as little intention as he has of resorting to the great decision by arms. But what we have here said of another direction of views and forces relates only to other _positive objects_, which we may propose to ourselves in War, besides the destruction of the enemy’s force, not by any means to the pure defensive, which may be adopted with a view thereby to exhaust the enemy’s forces. In the pure defensive the positive object is wanting, and therefore, while on the defensive, our forces cannot at the same time be directed on other objects; they can only be employed to defeat the intentions of the enemy.