And will it be different in the battle of all arms? In that case, if the army cavalry advances from the wing of the army with the intention of attacking the enemy's flank, what need will it have of échelon formations? It is known that an attack must be made under any circumstances. Further information as to the comparative strength of the enemy cannot and must not be waited for. All available forces will be engaged in order to wrest a victory, and must from the beginning be so disposed that the enemy will be compelled as far as possible to conform to our movements, and that we may prepare the most favourable deployment for attack in the manner discussed above. Must we, then, advance with the division in close formation, écheloned within itself, in order to afford the greatest possible target for the enemy's artillery? Are we to choose the pusillanimous formation of the defensive échelon, that we may perhaps be obliged to approach and to deploy under the enemy's eyes, incapable in this unwieldy formation of turning the ground to account? I cannot think that this is practical and believe that modern artillery fire of itself suffices to make the écheloned division an impossibility and to banish it for ever from the battlefield. It must be added that should the unexpected appearance of the enemy on a flank make it necessary, _rearward_ échelon is much easier to assume from a formation of brigades on the same front than is the line or attack formation from rearward échelon. It is only necessary for that part of the line which is to be écheloned to halt or decrease the pace, and the échelon is soon formed. To push forward units from depth while on the move means, on the other hand, a considerable and indeed unnecessary expenditure of force. VII. FORMATIONS FOR MOVEMENT As the brigades in a modern division must, on account of the effect of artillery fire, be disposed according to completely different principles from those of the past, so, too, must the formations adopted by the various groups be chosen to suit modern conditions. Our new Regulations lay down that, if the cavalry, after its preliminary deployment, has to cross an extensive fire-zone, the subordinate leaders are to choose such formations for their units as will minimise the effect of the hostile fire, and that, for this purpose, the configuration of the ground must be turned to the best advantage, even though it should involve temporary departure from prescribed intervals.