If a segment of one's force is located where it is not sufficiently busy with the enemy, or if the troops are… — Carl von Clausewitz

If a segment of one's force is located where it is not sufficiently busy with the enemy, or if the troops are on the march - that is, idle - while the enemy is fighting, then these forces are being managed uneconomically. In this sense they are being wasted, which is even worse than using them inappropriately.

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