War and the Arme Blanche. Erskine Childers
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for the effective exercise of shock, each stringent, and, since they must all be satisfied, of a fourfold cumulative stringency. Note again the absence of analogy with the bayonet, which is fixed to the rifle, and comes into use only at the climax of a fire-fight on foot. The four conditions may be mitigated genuinely by one circumstance, which I shall refer to later. At the moment I wish to refer to an alleged mitigation which embraces a profound fallacy, and I beg for the reader’s particular attention to this point, for it is largely on that fallacy, at any rate in our own country, that the arme blanche continues to thrive.
Recall the first two conditions, which may be regarded as counterparts of one another—density of formation, both in the attacking and defending force. The reader will easily understand why the latter condition is so necessary. To propel a massed body of horsemen against an extended line of riflemen is a wasteful expenditure of effort. There will be no shock worth the name, while the mass in motion is almost as vulnerable a target to rifles as though the defence too were massed; fire is convergent instead of direct, that is all. But supposing the horsemen follow suit, and charge in loose, extended order? So they may, but in that case also they will not produce shock, which is the indispensable condition for the successful use of the steel weapon. Here is the heart of the whole matter. Though there is, of course, no fixed moment when shock may be said to disappear, it is plain that with every additional yard of extension, either in the attacking or defending line, or both, shock, which means the violent physical impact of a united body, must diminish. It is equally plain that in proportion to this diminution of shock the chances of the steel weapon rapidly dwindle and the retaliatory power of the rifleman rapidly increases. He is now an individual pitted against a rival individual who has lost the collective power due to mass, while he retains the vulnerability due to large surface presented by his horse. On these terms the rifleman has an immense advantage. He has room to move in, a longer range for his far more deadly weapon, and breathing-time. Let the student beware, then, when he finds it laid down in the textbook that Cavalry, when attacking Infantry, are to charge in “extended order” with the steel weapon.[12] No thoroughly logical upholder of shock—no German, for example—would be guilty of such a solecism. Bernhardi recommends, at the utmost, a “loosening of the files” from the jammed, knee-to-knee rigidity of the charge, as it is to be employed against horsemen. “Only closed lines on a broad front can be relied upon for success.”[13] Our idea of extension could only come from confusion of thought in a period of transition. The reader must watch this point most carefully when we come to illustrations from the South African War. Is there, then, no opportunity for horsemen to charge in extended order? Of course there is; but not for horsemen using the steel. I shall come to the other type in a moment.
I have dealt with the fallacious source of mitigation. Now for the true source—surprise. This factor of course favours the attack, not only of steel horsemen, but of all horsemen, and, indeed, of all troops in any phase of military effort. But it is the soul of mounted effort, because surprise is derived from mobility, and the horse is the instrument of mobility. Surprise, therefore, can mitigate any of the rigorous conditions imposed on shock. For example, the extended riflemen may be caught in flank so suddenly that they can neither develop fire before contact nor deploy frontally to meet it. Or massed infantry may be caught in column of route. But in all cases the degree of surprise requisite can only be measured by the rigour of the conditions, and experience proves, admittedly, that under modern conditions an enormous degree of surprise is necessary for the success of shock against riflemen. On the whole we shall not be far wrong if we lay it down, as Bernhardi plainly indicates, that the best, if not the only, opportunity for the steel against riflemen is in the pursuit of utterly demoralized troops. Here the least degree of shock is necessary, with a corresponding slackening in the rigour of the conditions of shock, but, be it noted, with a corresponding diminution in the efficacy of the steel, which, as I pointed out, is closely dependent on shock. If we reach a point when no shock is possible, the steel becomes no more useful than the rifle.
So much for the steel, and the reader long before this will have seen why the steel is only used in offence. It requires shock, shock requires momentum, and momentum implies offence.
Now let us turn to the mounted rifleman, assumed to be of the pure type. But observe at the outset that we have already been dealing with his defensive rôle. Dismounted, he has the defensive power of Infantry, and the physical factors involved are precisely the same. Continue to regard him in defence, crediting him now with the additional mobility conferred by the horse. If it is only under the rarest circumstances that Infantry can be forced into combat on terms favourable to steel, still more rarely can mounted riflemen be so forced. They can extend more quickly, change front, or retire to better positions more easily—in a word, they have a tactical suppleness and elasticity unknown to Infantry. Of course, I am assuming that they are good mounted riflemen, skilled in the instantaneous transition from the mounted to the dismounted state, and able to manage their led horses adroitly and safely. It has always been the belief of the arme blanche school that steel horsemen if they cannot charge dismounted riflemen, can at any rate charge their led horses. All the facts, as I shall show, prove this idea to be illusory.
And now, on behalf of the rifle, let us carry the war into the enemy’s camp, regarding the rifle, not as a defensive, but as an aggressive weapon in the hands of mounted men. Save for the elimination of weight, the physical merits and demerits of the horse remain precisely the same: speed on the one hand, vulnerability on the other. To exploit the first and minimize the second must be the effort here as always. But that is the only point of similarity in the two widely different problems presented by shock-tactics and fire-tactics. The sword can only be used in a hand-to-hand encounter; the modern firearm has deadly effect at long distances. From this fundamental difference in the two weapons everything else follows. Shock, with its crushing limitations and disabilities, is totally eliminated. The very idea of shock is utterly foreign to the fire-tactics of mounted men, because there is no necessity for it. There is no necessity, therefore, to comply with all the conditions which are required to produce shock, and which in their turn so dangerously enhance the vulnerability of horse and rider. Let us try to contrast the two systems of attack, with the steel and the firearm respectively, remembering that mounted riflemen, besides the defensive, have the offensive power of Infantry plus the mobility conferred by the horse.
As in defence so in offence, the firearm begins to be deadly when the steel weapon is only an encumbrance, and when the firer is still invisible. By the intelligent use of ground for the concealment of horses, and the development of fire at successive points, the attack may go through all the phases of Infantry attack with a vast increase of mobility, and with the vulnerability of the horse reduced by skill to a minimum.
But I need not dwell on the preliminary and intermediate phases of combat. It is only in the last phase—that of the final assault—that any parallel with shock-tactics begins. Up to this point the steel weapon has been idle, nor even now can it be brought into play unless all those four inexorable conditions are satisfied. The first two—close formation both in the attacking and defending force—do not apply at all to mounted riflemen, since there is no question of shock. The third and fourth have but a remote application.
Far from being a unique moment, this is merely a culmination. The enemy probably is already shaken, not by the fear of something which can only materialize after contact, but by positive casualties wrought by a long-range weapon. It remains to drive home the victory.
Contact may be desirable if feasible, but there is no imperative need for it. Under many conditions rifle-fire is more effective at 5, 50, even 100 yards’ distance than in a mêlée. A victory may be crushingly conclusive without recourse to anything in the nature of a hand-to-hand encounter; but if nothing save a hand-to-hand encounter will secure a victory, the rifle provides scores of opportunities of obtaining that encounter where the arme blanche provides but one, if only the mounted riflemen are versed in that elementary part of their trade, which consists in knowing what and how to use, and when and how to discard, the horse. As compared with the steel horsemen, they are almost independent of ground. Instead of perpetually pining for level swards and open “Cavalry ground,” they welcome inequalities and obstacles, for these are the true conditions of surprise. Indeed, they make use of these obstacles, instead of allowing them to baulk their efforts. Steep