Some Principles of Maritime Strategy - Corbett Julian Stafford

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most common situation in naval war is that neither side has the command; that the normal position is not a commanded sea, but an uncommanded sea. The mere assertion, which no one denies, that the object of naval warfare is to get command of the sea actually connotes the proposition that the command is normally in dispute. It is this state of dispute with which naval strategy is most nearly concerned, for when the command is lost or won pure naval strategy comes to an end.

      This truth is so obvious that it would scarcely be worth mentioning were it not for the constant recurrence of such phrases as: "If England were to lose command of the sea, it would be all over with her." The fallacy of the idea is that it ignores the power of the strategical defensive. It assumes that if in the face of some extraordinary hostile coalition or through some extraordinary mischance we found ourselves without sufficient strength to keep the command, we should therefore be too weak to prevent the enemy getting it—a negation of the whole theory of war, which at least requires further support than it ever receives.

      And not only is this assumption a negation of theory; it is a negation both of practical experience and of the expressed opinion of our greatest masters. We ourselves have used the defensive at sea with success, as under William the Third and in the War of American Independence, while in our long wars with France she habitually used it in such a way that sometimes for years, though we had a substantial preponderance, we could not get command, and for years were unable to carry out our war plan without serious interruption from her fleet.

      So far from the defensive being a negligible factor at sea, or even the mere pestilent heresy it is generally represented, it is of course inherent in all war, and, as we have seen, the paramount questions of strategy both at sea and on land turn on the relative possibilities of offensive and defensive, and upon the relative proportions in which each should enter into our plan of war. At sea the most powerful and aggressively-minded belligerent can no more avoid his alternating periods of defence, which result from inevitable arrests of offensive action, than they can be avoided on land. The defensive, then, has to be considered; but before we are in a position to do so with profit, we have to proceed with our analysis of the phrase, "Command of the Sea," and ascertain exactly what it is we mean by it in war.

      In the first place, "Command of the Sea" is not identical in its strategical conditions with the conquest of territory. You cannot argue from the one to the other, as has been too commonly done. Such phrases as the "Conquest of water territory" and "Making the enemy's coast our frontier" had their use and meaning in the mouths of those who framed them, but they are really little but rhetorical expressions founded on false analogy, and false analogy is not a secure basis for a theory of war.

      The analogy is false for two reasons, both of which enter materially into the conduct of naval war. You cannot conquer sea because it is not susceptible of ownership, at least outside territorial waters. You cannot, as lawyers say, "reduce it into possession," because you cannot exclude neutrals from it as you can from territory you conquer. In the second place, you cannot subsist your armed force upon it as you can upon enemy's territory. Clearly, then, to make deductions from an assumption that command of the sea is analogous to conquest of territory is unscientific, and certain to lead to error.

      The only safe method is to inquire what it is we can secure for ourselves, and what it is we can deny the enemy by command of the sea. Now, if we exclude fishery rights, which are irrelevant to the present matter, the only right we or our enemy can have on the sea is the right of passage; in other words, the only positive value which the high seas have for national life is as a means of communication. For the active life of a nation such means may stand for much or it may stand for little, but to every maritime State it has some value. Consequently by denying an enemy this means of passage we check the movement of his national life at sea in the same kind of way that we check it on land by occupying his territory. So far the analogy holds good, but no further.

      So much for the positive value which the sea has in national life. It has also a negative value. For not only is it a means of communication, but, unlike the means of communication ashore, it is also a barrier. By winning command of the sea we remove that barrier from our own path, thereby placing ourselves in position to exert direct military pressure upon the national life of our enemy ashore, while at the same time we solidify it against him and prevent his exerting direct military pressure upon ourselves.

      Command of the sea, therefore, means nothing but the control of maritime communications, whether for commercial or military purposes. The object of naval warfare is the control of communications, and not, as in land warfare, the conquest of territory. The difference is fundamental. True, it is rightly said that strategy ashore is mainly a question of communications, but they are communications in another sense. The phrase refers to the communications of the army alone, and not to the wider communications which are part of the life of the nation.

      But on land also there are communications of a kind which are essential to national life—the internal communications which connect the points of distribution. Here again we touch an analogy between the two kinds of war. Land warfare, as the most devoted adherents of the modern view admit, cannot attain its end by military victories alone. The destruction of your enemy's forces will not avail for certain unless you have in reserve sufficient force to complete the occupation of his inland communications and principal points of distribution. This power is the real fruit of victory, the power to strangle the whole national life. It is not until this is done that a high-spirited nation, whose whole heart is in the war, will consent to make peace and do your will. It is precisely in the same way that the command of the sea works towards peace, though of course in a far less coercive manner, against a continental State. By occupying her maritime communications and closing the points of distribution in which they terminate we destroy the national life afloat, and thereby check the vitality of that life ashore so far as the one is dependent on the other. Thus we see that so long as we retain the power and right to stop maritime communications, the analogy between command of the sea and the conquest of territory is in this aspect very close. And the analogy is of the utmost practical importance, for on it turns the most burning question of maritime war, which it will be well to deal with in this place.

      It is obvious that if the object and end of naval warfare is the control of communications it must carry with it the right to forbid, if we can, the passage of both public and private property upon the sea. Now the only means we have of enforcing such control of commercial communications at sea is in the last resort the capture or destruction of sea-borne property. Such capture or destruction is the penalty which we impose upon our enemy for attempting to use the communications of which he does not hold the control. In the language of jurisprudence, it is the ultimate sanction of the interdict which we are seeking to enforce. The current term "Commerce destruction" is not in fact a logical expression of the strategical idea. To make the position clear we should say "Commerce prevention."

      The methods of this "Commerce prevention" have no more connection with the old and barbarous idea of plunder and reprisal than orderly requisitions ashore have with the old idea of plunder and ravaging. No form of war indeed causes so little human suffering as the capture of property at sea. It is more akin to process of law, such as distress for rent, or execution of judgment, or arrest of a ship, than to a military operation. Once, it is true, it was not so. In the days of privateers it was accompanied too often, and particularly in the Mediterranean and the West Indies, with lamentable cruelty and lawlessness, and the existence of such abuses was the real reason for the general agreement to the Declaration of Paris by which privateering was abolished.

      But it was not the only reason. The idea of privateering was a survival of a primitive and unscientific conception of war, which was governed mainly by a general notion of doing your enemy as much damage as possible and making reprisal for wrongs he had done you. To the same class of ideas belonged the practice of plunder and ravaging ashore. But neither of these methods of war was abolished for humanitarian reasons. They disappeared indeed as a general practice before the world had begun to talk of humanity. They were abolished because war became more scientific. The right to plunder and ravage was not denied. But plunder was found to demoralise your troops and unfit them for fighting, and ravaging proved to be a less powerful means of coercing your enemy than exploiting the occupied country by means of regular requisitions for the supply of your own army and the increase of its offensive range. In short, the reform arose from a desire to husband your enemy's resources

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