The determination of correct physical objectives is followed, if more than one such objective is found, by the selection of the one or more which are best adapted to the requirements of the situation. The procedure for determination and for selection is a matter for painstaking mental effort, based on the considerations now to be presented.

The term "military objective" is frequently used in military literature to distinguish physical objectives which are combatant in character from those which are noncombatant. The considerations which follow are applicable to physical objectives of all categories.

Procedure for Determination and Selection of Correct Physical Objectives. In a particular set of circumstances, the field wherein correct physical objectives may be found and the best selected, is that of an existent or probable theater of action.

The determination of a physical objective, when correct, initially satisfies the requirement of suitability with respect to the nature of the objective,—this being, in such case, the appropriate effect desired ([page 31]). Physical objectives not suitable, with relation to the objective to be attained, are manifestly incorrect physical points of orientation with respect to the operations involved in the effort to attain such an objective.

It may be found, however, that the selection of a single physical objective will not fulfill this requirement. A commander may find it necessary to direct his effort simultaneously, or in succession, with relation to more than one physical objective.

When a succession of physical objectives has to be dealt with, the selection will necessarily include such a series. Such a case might occur where a campaign has been found necessary in the form of successive stages as essential features. The visualized termination of each successive stage may be marked by the successful application of effort with respect to one or more physical objectives. Such a series of physical objectives may frequently also occur in operations on a smaller scale; even in very minor actions such a succession of efforts is normal. (See [page 54], as to objectives.)

The choice as to the specific nature of physical objectives will extend, for example, from the enemy's organized forces as a whole to the physical body of an individual combatant. Within this range will be included all manner of physical elements of enemy fighting strength, singly and in combination, such as troops, ships, geographical points, lines and areas, fortifications, bases, and supplies.

The physical objective may take the form of a fixed geographical position, the occupation of which, because of its inherent advantages, may be, for example, an essential preliminary to further progress. The position may, for instance, be merely a point in the ocean ([page 47]), a rendezvous beyond which, although its occupation may be uncontested, it has been deemed unwise to proceed without further information or additional strength.

The physical objective, therefore, does not always take the form of some element of the enemy fighting strength; not infrequently, the occupation of a correct physical objective may be uncontested by the enemy. However, intervening armed forces of the enemy may constitute the physical objective for application of successful effort before a further physical objective may be dealt with. The possibility of enemy opposition may, therefore, place the selection of one or more physical objectives on an indeterminable basis at the time of the original solution of the problem. This may require a commander to defer his choice until the situation has become more fully developed.

For example, his objective may be the occupation of a certain harbor, preliminary to the establishment of a base. The harbor is then a correct physical objective, perhaps the only physical objective which need be dealt with, if there are no other obstacles to prevent or interrupt the operation. Armed forces of the enemy may, however, stand as an obstacle to the undisputed occupation of the harbor and, therefore, to the attainment of the objective. In such case they become, for the time being, the correct physical objective.