Pursuit
"Once the great victory is gained, the next question is not about rest, not about taking breath, not about re-organizing, etc., but only of pursuit, of fresh blows wherever necessary, of the capture of the enemy's capital, of the attack of the armies of his allies, or whatever else appears as a rallying point for the enemy."[58]
Clausewitz points out that this is very difficult, and that to compel his exhausted troops vigorously to pursue till nightfall requires GREAT force of WILL on the part of the equally exhausted commander. We need only remember that Napoleon himself at the supreme crisis of his fate, being physically tired, failed to pursue the allies after his victory at Dresden, 1813, whereby he lost all the fruits of his victory, and indeed his last chance of ultimate success.