Page:USMC MCDP 1-3 - Tactics.djvu/115

MCDP 1-3 -  Exploiting Success and Finishing from which a result is expected — the decisive attack." It is generally through offensive action, even in the defense, that we achieve decisive results. Since the reserve represents our bid to achieve a favorable decision or to prevent an unfavorable one, it often becomes the main effort once committed and should be supported by all the other elements of the force.

Along with the tangible assets used as a reserve, the prudent commander must also be aware of, and plan for, the intangible factors that impact on combat power and its sustainment. Intangible factors include fatigue, leadership quality, proficiency, morale, teamwork, and equipment maintenance. We build reserves also by reserving aviation sortie rates or numbers, withholding unique or low-density munitions, or holding critical supplies such as fuel or petroleum, oils, and lubricants for a specific goal. We consider these intangible factors when creating and tasking the reserve, as we do in all assignments of tasks.

These concepts apply not only to units initially designated as the reserve but also to any unit, since any unit can be shifted or recommitted as the reserve. Thus a commander must always be mentally prepared to redesignate roles of units and to create and use reserves as the situation requires.