An offensive of this kind will not always compensate us for what we lose upon other points. Whilst we are engaged in making a partial conquest, the enemy may be doing the same at other points, and if our enterprise does not greatly preponderate in importance then it will not compel the enemy to give up his. It is, therefore, a question for serious consideration whether we may not lose more than we gain in a case of this description.
Even if we suppose two provinces (one on each side) to be of equal value, we shall always lose more by the one which the enemy takes from us than we can gain by the one we take, because a number of our forces become to a certain extent like faux frais, non-effective. But as the same takes place on the enemy’s side also, one would suppose that in reality there is no ground to attach more importance to the maintenance of what is our own than to the conquest. But yet there is. The maintenance of our own territory is always a matter which more deeply concerns us, and the suffering inflicted on our own state can not be outweighed, nor, to a certain extent, neutralised by what we gain in return, unless the latter promises a high percentage, that is, is much greater.
The consequence of all this is that a strategic attack directed against only a moderate object involves a greater necessity for steps to defend other points which it does not directly cover than one which is directed against the centre of the enemy’s force; consequently, in such an attack the concentration of forces in time and space cannot be carried out to the same extent. In order that it may take place, at least as regards time, it becomes necessary for the advance to be made offensively from every point possible, and at the same moment exactly: and therefore this attack loses the other advantage of being able to make shift with a much smaller force by acting on the defensive at particular points. In this way the effect of aiming at a minor object is to bring all things more to a level: the whole act of the war cannot now be concentrated into one principal affair which can be governed according to leading points of view; it is more dispersed; the friction becomes greater everywhere, and there is everywhere more room for chance.