Page:Tactics (Balck 1915).djvu/438

 will be required. (Beaune la Rolande, Lisaine). The change from the tactical defensive to the offensive offers the same difficulties as the corresponding strategical move; but, in the former case, there is present, in addition, the element of danger and the difficulty of perceiving the right moment.

A position is of value only when it compels the enemy to attack, directs his movements into definite channels, and induces him to make wide turning movements, which cause him to lose time and produce favorable conditions for the assumption of the offensive on the part of the defender. Every position that enables the defender to use all his weapons, and does not deter the enemy from making an attack, is suitable for this purpose.

"By placing our troops in an unassailable position, we actually refuse battle and force the enemy to seek the decision in another manner. * *  * A defensive position approaches its ideal to the extent that its strength is hidden and opportunity is offered of surprising the enemy by our tactical combinations. One should endeavor to conceal the advantages which one intends to derive from the formation of the ground, just as one hides from the enemy the bulk of one's troops and their actual position. This is, indeed, only practicable to a certain extent, and requires perhaps a peculiar and little used method of treatment."

Modern firearms make the defense so strong in front that it suffices to hold this part of the position with a weak force supplied with plenty of ammunition, and provided with weak supports, at a few points, to replace losses. As these supports have a definite task to perform, they are posted as near the first line as the available cover permits, in order to cut down the distance to be traversed by them under fire.