Cool and objective consideration of such ideas must, in my opinion, lead us to negative such undertakings--on our side, at any rate. In the first place, the enemy will always be in a position, by suitable organization of his frontier guards and the situation selected for the front of his strategic deployment, to withdraw himself either altogether from the radius of action of the Cavalry, or at least render its advance both difficult and dangerous. The danger will be the greater the more it has been possible to provide for the armament and organization of the population in the frontier provinces. Where the conditions on the side of the defender are not unusually unfavourable--as, for instance, in wide open districts--or where there is a want of troops in strategically unimportant provinces, then even if the invading masses break in on the very first day of mobilization, they will find railways, defiles, river-crossings already defended by infantry or popular levies. If they come upon an insurgent population they will find great difficulties both in reconnaissance and subsistence. At every step they advance, the numbers of the opponent will be constantly increasing, while their own strength diminishes. The defiles will be occupied between their several columns, and they must guard themselves in every direction. Their trains and baggage get into confusion, and supply becomes all the more difficult the more rapidly they advance, because the waggons cannot keep up with their movement, and there is no time for requisitioning. Field batteries and lines of infantry occupy the more important positions, the enemy's Cavalry appears on the flanks, and man and horse break down at length under the severity of the strain. Retreat becomes inevitable, and if they ever get back at all, they can only reach their own Army after heavy losses and with broken force. The damage which they can do to the enemy remains small in proportion to his total power, even though it is locally not inconsiderable. At the best one may hope to destroy some railway not too far from the frontier, interrupt some telegraph lines of communication, and disperse or capture some ammunition depots, magazines, or snap up some convoys of reserve men and horses. But the enemy has already taken these possibilities into account; they will soon be overcome, and his arrangements in general will be hardly disturbed.