On War

by Carl von Clausewitz

That policy unites in itself, and reconciles all the interests of internal administrations, even those of humanity, and whatever else are rational subjects of consideration, is presupposed, for it is nothing in itself, except a mere representative and exponent of all these interests towards other States. That policy may take a false direction, and may promote unfairly the ambitious ends, the private interests, the vanity of rulers, does not concern us here; for, under no circumstances can the art of war be regarded as its preceptor, and we can only look at policy here as the representative of the interests generally of the whole community.

The only question, therefore, is, whether in framing plans for a war the political point of view should give way to the purely military (if such a point is conceivable), that is to say, should disappear altogether, or subordinate itself to it, or whether the political is to remain the ruling point of view, and the military to be considered subordinate to it.

That the political point of view should end completely when war begins, is only conceivable in contests which are wars of life and death, from pure hatred: as wars are in reality, they are as we before said, only the expressions or manifestations of policy itself. The subordination of the political point of view to the military would be contrary to common sense, for policy has declared the war; it is the intelligent faculty, war only the instrument, and not the reverse. The subordination of the military point of view to the political is, therefore, the only thing which is possible.

If we reflect on the nature of real war, and call to mind what has been said in the third chapter of this book, that every war should be viewed above all things according to the probability of its character, and its leading features as they are to be deduced from the political forces and proportions, and that often—indeed we may safely affirm, in our days, almost always—war is to be regarded as an organic whole, from which the single branches are not to be separated, in which therefore every individual activity flows into the whole, and also has its origin in the idea of this whole, then it becomes certain and palpable to us that the superior stand-point for the conduct of the war, from which its leading lines must proceed, can be no other than that of policy.

From this point of view the plans come, as it were, out of a cast; the apprehension of them and the judgment upon them become easier and more natural, our convictions respecting them gain in force, motives are more satisfying, and history more intelligible.

At all events, from this point of view, there is no longer in the nature of things a necessary conflict between the political and military interests, and where it appears it is therefore to be regarded as imperfect knowledge only. That policy makes demands on the war which it cannot respond to, would be contrary to the supposition that it knows the instrument which it is going to use, therefore, contrary to a natural and indispensable supposition. But if it judges correctly of the march of military events, it is entirely its affair, and can be its only to determine what are the events and what the direction of events most favourable to the ultimate and great end of the war.

In one word, the art of war in its highest point of view is policy, but, no doubt, a policy which fights battles, instead of writing notes.

According to this view, to leave a great military enterprise, or the plan for one, to a purely military judgment and decision, is a distinction which cannot be allowed, and is even prejudicial; indeed, it is an irrational proceeding to consult professional soldiers on the plan of a war, that they may give a purely military opinion upon what the cabinet should do; but still more absurd is the demand of Theorists that a statement of the available means of war should be laid before the general, that he may draw out a purely military plan for the war or for a campaign, in accordance with those means. Experience in general also teaches us that notwithstanding the multifarious branches and scientific character of military art in the present day, still the leading outlines of a war are always determined by the cabinet, that is, if we would use technical language, by a political not a military functionary.

This is perfectly natural. None of the principal plans which are required for a war can be made without an insight into the political relations; and, in reality, when people speak, as they often do, of the prejudicial influence of policy on the conduct of a war, they say in reality something very different to what they intend. It is not this influence but the policy itself which should be found fault with. If policy is right, that is, if it succeeds in hitting the object, then it can only act on the war in its sense, with advantage also; and if this influence of policy causes a divergence from the object, the cause is only to be looked for in a mistaken policy.

It is only when policy promises itself a wrong effect from certain military means and measures, an effect opposed to their nature, that it can exercise a prejudicial effect on war by the course it prescribes. Just as a person in a language with which he is not conversant sometimes says what he does not intend, so policy, when intending right, may often order things which do not tally with its own views.