During the approach to the battle of encounter it is, as I have endeavoured to prove, quite superfluous, and may even operate to our disadvantage. In this case, when total uncertainty reigns as to whether the combat will be carried out mounted or dismounted, or both, there can be no question of any stereotyped tactical formation, either of units as a whole or of smaller bodies within them. Here, as we have seen, the battle will generally develop gradually, and the fighting-line be fed from depth, until the necessary information as to the enemy has been gained and the decisive attack can be embarked upon. Under such circumstances the brigades advance according to the tasks allotted them, and make their dispositions as circumstances dictate. The depth that will be necessary can obviously not be laid down, and can be attained by échelon neither in the division nor in its subdivisions. If the division should advance under such circumstances in close formation écheloned within itself, the unnecessary danger would be run of offering an ideal target to the enemy's artillery (which must always be taken into consideration), and at the same time of hampering movement where circumstances demand the greatest freedom in all directions.

If, on the other hand, the enemy's dispositions are known before a collision occurs, the Regulations themselves (426, see p. 172) allow that échelon formation is superfluous, and that the advance may be made in the deployed formation desired, brigades being on the same frontage, if the country and the character of the adversary offer the probability of a charge.

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.

I do not consider these instructions, which, in contradiction to the general principles of the Regulations, give free play to the initiative of all subordinate leaders, are sufficiently definite. They appear to try to avoid giving a distinct designation to this manner of advance. Before the publication of the Regulations it was known as "extended formation." As such I have characterised it in my brochure, "Reflections on the New Cavalry Regulations," published in 1908, and it is to be regretted that this title was not maintained in the Regulations, and with it also the real essence of the whole formation. This would, I think, have made the matter clearer. I hold it to be of great importance that the adoption of such formations should be ordered by higher authority, as otherwise there must be a danger of the troops getting out of hand.

In adopting these extensions it is not only a question of ground actually under artillery fire, but also of areas during the crossing of which fire may be expected, to which, of course, the troops should not be exposed. Whether such is the case or not, the cavalry commander, who is observing and receiving intelligence as the troops hurry forward, is alone in a position to judge, and not each subordinate leader. For this reason alone, unity of action is absolutely necessary. So is it also from another point of view. I need scarcely enlarge on the picture of what would occur if each subordinate commander, each squadron leader, according to his individual judgment, were to suddenly regulate the pace and formation of his own volition, while it would be a matter of difficulty to maintain proper control of the troops if it were left to the squadron leaders to regain alignment in their own time.

It is therefore imperative, to my mind, that such extensions should not be left to the discretion of the squadron leader, but ordered by superior authority. Instructions as to pace should be given at the same time, and the area indicated where troops are to regain the formation ordered and decrease the pace. These are points that have escaped the notice of the Regulations. Orders must also be given as to whether several lines will eventually be formed. These will then generally have to follow each other at shrapnel distance. Only the choice of formation and line of advance must be left to the subordinate leaders, as they alone are in a position to judge of the local effect of the hostile fire.