For example, if the incentive arises by reason of a directive received from higher authority, such directive will presumably assign an objective, specific or inferred. The commander to whom such an objective is assigned is responsible for a correct understanding of all the implications involved, including the relationship between the assigned objective and the general objective of the next higher commander, which represents the purpose of the assigned objective. On occasion it will also be necessary for the commander to consider the relationships involved with the further objectives of the higher command (page 49). Again, without any suggestion of cavilling at orders received, the commander may also find occasion to examine, with care, the implications of his assigned objective, because of his responsibility for taking correct action in the premises (page 15). If the incentive arises from a decision previously made by the commander, it follows that such decision will have embodied an objective, selected by the commander himself. If the incentive arises because of the demands of the situation, the commander is responsible for recognition of the necessity for action and for the correct selection of an appropriate objective, to be adopted by him as a basis for his own action as if it were assigned by higher authority. An assigned objective having been established with respect to the basis for his problem, the commander is always responsible for the correct selection of an objective to serve as the end in view for the general, integrated action of his subordinate commanders. Once such an objective has been selected, the commander is further responsible for selecting, on the basis provided thereby, correct objectives to be assigned to his subordinate commanders. For various practical reasons, therefore, the responsibility of the commander requires of him the ability to select correct objectives. On the basis of classification with respect to the authority making the selection, analysis will demonstrate the existence of two types of objectives. These two types of objectives are (see page 30 as to effects and further effects), namely, (1) the assigned objective (page 48) ordinarily indicated by higher authority, exceptionally determined by the commander for himself, and (2) the objective typically selected by the commander, himself, as the end in view for the integrated effort of his subordinates. It will be noted that in the latter category there will fall, not only the general objective referred to immediately above, but numerous other objectives for whose attainment provision may be needed during the actual prosecution of the effort or in anticipation thereof.