And what of the action of Cavalry against other Arms? We know Sir John French's opinion about mounted riflemen. They will gallop for their lives "defenceless" at the approach of "good" Cavalry. But Infantry, riflemen without horses, who cannot gallop, but can only run? Their case, it would seem, must be still more desperate. They are not only defenceless, but destitute even of the means of flight. And yet even Sir John French credits them, if not with an offensive spirit, at least with "tenacity and stiffness," derived, of course, from their rifles. But their mounted comrades, armed with these same rifles, lack these soldierly qualities. We arrive thus at the conclusion that the horse, which one would naturally suppose to be a source of immensely enhanced mobility and power, is a positive source of danger to a rifleman unless he also carries a lance or sword. Here is the _reductio ad absurdum_ of the _arme blanche_ theory, and I beg for the reader's particular attention to it. Of course, the conclusion is in reality too absurd; for Sir John French himself does not really believe that Infantry are a defensive Arm. In point of fact, no serious man believes that Infantry in modern war have anything whatever to fear from the lance and sword, and their training-book is written on that assumption. Nor does Sir John French really believe that Mounted Infantry are a defensive Arm who run from Cavalry; otherwise, he would never rest until he had secured the complete abolition of our Mounted Infantry, who are now, under his official sanction, designed to act, not only as divisional mounted troops against steel-armed Continental Cavalry, but to co-operate with, and in certain events take the place of, our own regular Cavalry in far wider functions, and are presumably not going to be whipped off the field at the distant glimpse of a lance or sword. And I may say here that the reader can obtain no better and more searching sidelight on the steel theory than by studying the Mounted Infantry Manual (1909) for the rules given about similar and analogous functions. Nor, if Sir John French went the whole length of the theory, would he, as Inspector-General, have permitted our Colonial mounted riflemen to think that they might be of some Imperial value in a future war. It is only in order to sustain his _a priori_ case for the steel weapons that he finds himself forced into the logical _impasses_ to which I have drawn attention.