The chart on page ii shows these relationships. I. MAJOR COMPONENTS OF MILITARY PROBLEMS. In the two preceding chapters, the study of the natural mental processes has brought to notice that, to meet the requirements of suitability, feasibility, and acceptability as to consequences in the proper solution of a military problem, it is first necessary to establish a sound basis for that solution. Such a basis involves an understanding of the appropriate effect desired and of relative fighting strength (see pages 29 and 30). In each situation an understanding of the appropriate effect desired, from the standpoint of suitability, requires: (1) A grasp of the salient features of the situation, favorable and unfavorable, including the perplexity inherent therein, (2) A recognition of the incentive to solution of the problem, i.e., a realization of the desire or need for attaining a certain effect, an objective (page 36) which will be the maintenance or creation of a favorable military situation, and (3) An appreciation of this objective in its relationship to the next further result to be accomplished by its attainment. An understanding of relative fighting strength involves consideration of the means available and opposed, as influenced by the characteristics of the theater of operations. With this understanding there is provided a sound basis for the determination, later, of the feasibility of courses of action and of their acceptability with respect to consequences as to costs. In the premises, the ability to understand the nature of a military problem is dependent on the knowledge, experience, character, and professional judgment of the commander. These qualities enable him to grasp the significance of the salient features of the situation. The same personal characteristics are instrumental in the recognition of the incentive. Analysis indicates that an incentive may arise (1) by reason of a directive issued by higher authority, or (2) from the fact that a decision already reached by the commander has introduced further problems, or (3) because of the demands of the situation. However, the primary consideration in understanding the nature of the problem is the appreciation of the objective from which the problem originates, i.e., the just estimation or accurate evaluation of this objective. Such consideration is primary because appreciation of this objective involves, as necessary concomitants, a grasp of the salient features of the existing situation (to be maintained or changed) and a recognition of the incentive.