Such marches tell upon the pursuer as well as the pursued, and they are not advisable if the enemy’s army rallies itself upon another considerable one; if it has a distinguished general at its head, and if its destruction is not already well prepared. But when this means can be adopted, it acts also like a great mechanical power. The losses of the beaten army from sickness and fatigue are on such a disproportionate scale, the spirit of the army is so weakened and lowered by the constant solicitude about impending ruin, that at last anything like a well organised stand is out of the question; every day thousands of prisoners fall into the enemy’s hands without striking a blow. In such a season of complete good fortune, the conqueror need not hesitate about dividing his forces in order to draw into the vortex of destruction everything within reach of his army, to cut off detachments, to take fortresses unprepared for defence, to occupy large towns, etc., etc. He may do anything until a new state of things arises, and the more he ventures in this way the longer will it be before that change will take place.

There is no want of examples of brilliant results from grand decisive victories, and of great and vigorous pursuits in the wars of Bonaparte. We need only quote Jena 1806, Ratisbonne 1809, Leipsic 1813, and Belle-Alliance 1815.