For example, misunderstanding has resulted from the designation of the single word, surprise, as a "principle of war". On the one hand, it has been denied that surprise embodies a principle, the reason being advanced that it is neither always necessary, nor feasible, nor even desirable to attempt to obtain surprise. On the other hand, the acceptance of the word surprise (see page 73), as itself expressing a universal truth (which it of course does not except by inference), has been known to result in the incorrect belief that surprise is always essential to success. Action based on such a viewpoint is the equivalent of applying general treatment to specific cases, regardless of circumstances. Thus there have resulted distortions of the simple fact that a relationship exists between the employment of the unexpected, and the creation of a disadvantage which will hamper an opponent. The correct formulation of a principle, or of several principles, governing the employment of surprise, will result in a definite statement that its appropriate employment is dependent upon the various factors (page 25) that make up the situation, the influence of each of which requires evaluation in each separate situation. Analysis, in like manner, of the so-called "principle of the objective" as a "principle of war" will show that the objective of a military force is, in itself, no more a principle of war than the direction of a physical force is, in itself, a principle of mechanics. Both concepts, however, involve certain matters of fact which can best be explained by principles. Such principles take note of the factors pertaining to the subjects, and indicate the underlying relationships in a manner to be later shown herein. Certainly the preceding list (above) of isolated expressions includes no item which, in the abstract, may not properly be considered as possibly vital from the strategical and tactical standpoints. But that these expressions are always vital, and that there are no other considerations, can scarcely be accepted as final. Even if this objection could be removed by the inclusion of all factors well known to be vital, the fact would still remain that these expressions, standing alone, fail to satisfy the real need; i.e., they fail to indicate any practical application of the concepts which they are intended to imply. They do no more than provide a useful point of origin for further inquiry. When understood on this basis, they possess a certain value. * * * * *