Kitabı oku: «Lessons of the war with Spain and other articles», sayfa 11
DISTINGUISHING QUALITIES OF SHIPS OF WAR
From the descriptions of warships usually published, it would naturally be inferred that the determination of their various qualities concern primarily the naval architect and the marine engineer. This is an error. Warships exist for war. Their powers, being for the operations of war, are military necessities, the appreciation of which, and the consequent qualities demanded, are military questions. Only when these have been decided, upon military reasons, begins the office of the technologist; namely, to produce the qualities prescribed by the sea officer. An eminent British naval architect used to say, "I hold that it is the part of the naval officers to tell us just what qualities—speed, gun-power, armor, coal endurance, etc.—are required in a ship to be built, and then leave it to us to produce the ship." These words distinguish accurately and summarily the functions of the military and the technical experts in the development of navies. It is from the military standpoint, solely, that this article is written.
The military function of a navy is to control the sea, so far as the sea contributes to the maintenance of the war. The sea is the theatre of naval war; it is the field in which the naval campaign is waged; and, like other fields of military operations, it does not resemble a blank sheet of paper, every point of which is equally important with every other point. Like the land, the sea, as a military field, has its important centres, and it is not controlled by spreading your force, whatever its composition, evenly over an entire field of operations, like butter over bread, but by occupying the centres with aggregated forces—fleets or armies—ready to act in masses, in various directions from the centres. This commonplace of warfare is its first principle. It is called concentration, because the forces are not spread out, but drawn together at the centres which for the moment are most important.
Concentrated forces, therefore, are those upon which warfare depends for efficient control, and for efficient energy in the operations of war. They have two chief essential characteristics: force, which is gained by concentration of numbers; and mobility, which is the ability to carry the force rapidly, as well as effectively, from the centre to any point of the outlying field where action, offensive or defensive, becomes necessary. It is essential to keep in mind both these factors, and to study them in their true mutual relations of priority, in order and in importance,—force first, mobility second; for the force does not exist for the mobility, but the mobility for the force, which it subserves. Force without mobility is useful; even though limited, as in coast fortifications; mobility without force is almost useless for the greater purposes of war. Consequently, when it is found, as is frequently the case, that one must yield somewhat, in order to the full development of the other, it is extreme mobility, extreme speed, which must give way to greater force.
This caution may seem superfluous, but it is not so; for in the popular fancy, and in the appreciation of the technical expert, and to some extent also in the official mind as well,—owing to that peculiar fad of the day which lays all stress on machinery,—mobility, speed, is considered the most important characteristic in every kind of ship of war. Let the reader ask himself what is the most pronounced impression left upon his mind by newspaper accounts of a new ship. Is it not that she is expected to make so many knots? Compared with that, what does the average man know of the fighting she can do, when she has reached the end of that preposterously misleading performance called her trial trip? The error is of the nature of a half-truth, the most dangerous of errors; for it is true that, as compared with land forces, the great characteristic of navies is mobility; but it is not true that, between different classes of naval vessels, the swiftest are the most efficient for control of the sea. Force is for that the determining element.
Keeping these relations of force and mobility constantly in mind, there is a further consideration, easily evident, but which needs to be distinctly stated and remembered. When a ship is once built, she cannot be divided. If you have on land concentrated ten thousand men, you can detach any fraction of them you wish for a particular purpose; you can send one man or ten, or a company, or a regiment. You can, in short, make of them any fresh combination you choose. With ships, the least you can send is one ship, and the smallest you have may be more than you wish to spare. From this (as well as for other reasons) arises a necessity for ships of different classes and sizes, which must be determined beforehand. The determination must be reached not merely by a priori reasoning, as though the problem were wholly new; but regard must be had to the experience of the past,—to the teaching of history. History is experience, and as such underlies progress, just as the cognate idea, experiment, underlies scientific advance.
Both history and reasoning, of the character already outlined in these papers, concur in telling us that control of the sea is exercised by vessels individually very large for their day, concentrated into bodies called fleets, stationed at such central points as the emergency demands. Our predecessors of the past two centuries called these vessels "ships of the line of battle," from which probably derives our briefer modern name "battleship," which is appropriate only if the word "battle" be confined to fleet actions.
Among the naval entities, fleets are at once the most powerful and the least mobile; yet they are the only really determining elements in naval war. They are the most powerful, because in them are concentrated many ships, each of which is extremely strong for fighting. They are the least mobile, because many ships, which must keep together, can proceed only at the rate of the slowest among them. It is natural to ask why not build them all equally fast? The reply is, it is possible to do so within very narrow limits, but it is not possible to keep them so. Every deterioration, accident, or adverse incident, which affects one involves all, as regards speed, though not as regards fighting force. In our recent war, when an extensive operation was contemplated, the speed of one battleship reduced the calculated speed of the fleet by one knot,—one sea mile per hour. But, it may be urged, will not your slowest speed be much increased, if every vessel be originally faster? Doubtless; but speed means tonnage,—part of the ship's weight devoted to engines; and weight, if given to speed, is taken from other qualities; and if, to increase speed, you reduce fighting power, you increase something you cannot certainly hold, at the expense of something at once much more important and more constant—less liable to impairment. In the operation just cited the loss of speed was comparatively of little account; but the question of fighting force upon arrival was serious.
An escape from this dilemma is sought by the advocates of very high speed for battleships by increasing the size of the individual ship. If this increase of size is accompanied by increase of speed, but not proportionately of fighting power, the measure, in the opinion of the writer, stands self-condemned. But, granting that force gains equally with speed, there is a further objection already mentioned. The exigencies of war demand at times division, as well as concentration; and, in fact, concentration, properly understood, does not mean keeping ships necessarily within sight of one another, but so disposed that they can unite readily at will,—a consideration which space forbids me more than to state. Now, a big ship cannot be divided into two; or, more pertinently, eight ships cannot be made into ten when you want two bodies of five each. The necessity, or supposed necessity, of maintaining the Flying Squadron at Hampton Roads during the late hostilities exactly illustrates this idea. Under all the conditions, this disposition was not wholly false to concentration, rightly considered; but had the ships been fewer and bigger, it could not have been made.
The net result, therefore, of the argument, supported, as the writer believes, by the testimony of history, is: (1) that a navy which wishes to affect decisively the issues of a maritime war must be composed of heavy ships—"battleships"—possessing a maximum of fighting power, and so similar in type as to facilitate that uniformity of movement and of evolution upon which concentration, once effected, must depend for its maintenance, whether during a passage or in actual engagement; (2) that in such ships, regarded as fighting factors, which is their primary function, size is limited, as to the minimum, by the advisability of concentrating as much fighting power as possible under the hand of a single captain; but, on the other hand, size is also limited, as to its maximum, by the need of retaining ability to subdivide the whole fleet, according to particular exigencies; (3) as regards that particular form of mobility called speed, the writer regards it as distinctly secondary for the battleship; that, to say the least, the present proportions of weight assigned to fighting force should not be sacrificed to obtain increase of speed. Neither should the size of the individual ships be increased merely to obtain rates of speed higher than that already shown by some of our present battleships.
Concerning that particular function of mobility which is called coal endurance,—that is, the ability to steam a certain distance without stopping to recoal,—the convenience to military operations of such a quality is evident; but it is obvious that it cannot, with the fuels now available, be possessed beyond very narrow limits. A battleship that can steam the greatest distance that separates two fortified coaling stations of her nation, with a reasonable margin above that to meet emergencies, will evidently be able to remain for a long while with the fleet, when this is concentrated to remain under reduced steam at a particular point. The recoaling of ships is a difficulty which must be met by improving the methods of that operation, not by sacrificing the military considerations which should control the size and other qualities of the vessel.
It is the belief of the writer that ten thousand tons represent very nearly the minimum, and twelve thousand the maximum, of size for the battleship. Our present battleships fall within those limits, and, although less uniform in their qualities than might be desired, they give perfectly satisfactory indications that the requisite qualities can all be had without increase of size. When more is wanted—and we should always be striving for perfection—it should be sought in the improvement of processes, and not in the adding of ton to ton, like a man running up a bill. It is the difference between economy and extravagance. Into battleships such as these should go the greater proportion of the tonnage a nation gives to its navy. Ships so designed may reach the ground of action later than those which have more speed; but when they arrive, the enemy, if of weaker fighting power, must go, and what then has been the good of their speed? War is won by holding on, or driving off; not by successful running away.
An important consideration in determining the necessary composition of a navy is the subdivision of fighting power into offensive and defensive. The latter is represented chiefly by armor, the former by guns; although other factors contribute to both. The relative importance of the two depends upon no mere opinion of the writer, but upon a consensus of authority practically unanimous, and which, therefore, demands no argument, but simple statement. Offensive action—not defensive—determines the issues of war. "The best defence against the enemy's fire is a rapid fire from our own guns," was a pithy phrase of our Admiral Farragut; and in no mere punning sense it may be added that it is for this reason that the rapid-fire gun of the present day made such big strides in professional favor, the instant it was brought to the test of battle. The rapid-fire gun is smaller than the great cannon mounted in the turrets; but, while the latter have their proper usefulness, the immensely larger number of projectiles fired in a given time, and valid against the target presented to them, makes the rapid-fire battery a much stronger weapon, offensively, than the slow-acting giants. Here is the great defect of the monitor, properly so-called; that is, the low-freeboard monitor. Defensively, the monitor is very strong; offensively, judged by present-day standards, it is weak, possessing the heavy cannon, but deficient in rapid fire. Consequently, its usefulness is limited chiefly to work against fortifications,—a target exceptional in resistance, and rarely a proper object for naval attack. It is the opinion of the writer that no more monitors should be built, except as accessory to the defence of those harbors where submarine mines cannot be depended upon,—as at San Francisco and Puget Sound. It should be added that the monitor at sea rolls twice as rapidly as the battleship, which injuriously affects accuracy of aim; that is, offensive power.
The general principle of the decisive superiority of offensive power over defensive is applicable throughout,—to the operations of a war, to the design of a battleship, to the scheme of building a whole navy. It is to the erroneous belief in mere defence that we owe much of the faith in the monitor, and some of the insistence upon armor; while the cry that went up for local naval defence along our coast, when war threatened in the spring of 1898, showed an ignorance of the first principles of warfare, which, if not resisted, would have left us impotent even before Spain.
Brief mention only can be given to the other classes of vessels needed by the navy. Concerning them, one general remark must be made. They are subsidiary to the fighting fleet, and represent rather that subdivision of a whole navy which is opposed to the idea of concentration, upon which the battleship rests. As already noted, a built ship cannot be divided; therefore, battleships must be supplemented by weaker or smaller vessels, to perform numerous detached and often petty services.
From this characteristic of detachment—often singly—important engagements will rarely be fought by these smaller vessels. Therefore, in them fighting power declines in relative importance, and speed, to perform their missions, increases in proportion. As their essential use is not to remain at the centres, but to move about, they are called generically cruisers, from the French word croiser,—to cross. They cross back and forth, they rove the sea,—despatch boats, lookouts, scouts, or raiders. They are the cavalry of the fleet.
Prominent among these in modern navies is the so-called "armored" cruiser,—a type to which belonged the four principal vessels of Cervera's squadron. The name itself is interesting, as indicating the inveterate tendency of mankind to straddle,—the reluctance to choose one of two opposite things, and frankly to give up the other. Armor, being an element of fighting power, belongs properly to the battleship rather than the cruiser; and in the latter, if the weight spent in armor detracts from speed or coal endurance, it contravenes the leading idea of a cruiser,—mobility. But, while the name is incongruous, the type has its place as an armored vessel, though not as a cruiser. In our service at least—where it is represented by the New York and the Brooklyn—it is practically a second-class battleship, in which weight taken from fighting power is given to enginery and to speed. The advantage arising from this is purely tactical; that is, it comes into play only when in touch with the enemy. The armored cruiser belongs with the fleet, therefore her superior speed does not tell in making passages; but when fleets are in presence, or in the relative conditions of chase and pursuit, there is an advantage in being able to throw to the front, rear, or flanks, vessels which on a pinch can either fight or fly. This, be it noted in passing, is no new thing, but as old as naval history. A squadron of fast battleships of the day, thrown to the front of a fleet to harass the flanks of the enemy, is a commonplace of naval tactics, alike of galleys and sailing ships. Off Santiago, the New York and Brooklyn were, by Admiral Sampson, placed on the flanks of his squadron. Whichever way Cervera turned he would find a vessel of speed and fighting power equal to those of his own ships. Though unequal in fighting power to a first-class battleship, many circumstances may arise which would justify the armored cruiser in engaging one, provided her own fleet was in supporting distance. From their hybrid type, and from the exceptional circumstances under which they can be used, the tonnage put into these vessels should be but a small percentage of that given to the battle fleet, to which, and not to the cruisers, they really belong.
Concerning all other cruisers, mobility, represented in speed and coal endurance, is the chief requisite. Notwithstanding occasional aberrations in the past, the development of the cruiser classes may be safely entrusted by the public to the technical experts; provided it be left to naval officers, military men, to say what qualities should predominate. Moreover, as such vessels generally act singly, it is of less importance that they vary much in type, and the need of subdivision carries with it that of numerous sizes; but battleships, including armored cruisers, are meant to work together, and insistence should be made upon homogeneousness, especially in manœuvring qualities.
To sum up: the attention of the public should be centred upon the armored fleet, to which the bulk of expenditure should be devoted; the monitor, pure and simple,—save for very exceptional uses,—should be eliminated; the development of the true cruiser,—not armored,—both in type and in numbers, does not require great interest of the public; much of the duties of this class, also, can be discharged fairly well by purchased vessels, although such will never have the proportion of fighting power which every type of ship of war should possess. As a rule, it is undesirable that a military force, land or sea, should have to retreat before one of equal size, as auxiliary cruisers often would.
CURRENT FALLACIES UPON NAVAL SUBJECTS
All matters connected with the sea tend to have, in a greater or less degree, a distinctly specialized character, due to the unfamiliarity which the sea, as a scene of action, has for the mass of mankind. Nothing is more trite than the remark continually made to naval officers, that life at sea must give them a great deal of leisure for reading and other forms of personal culture. Without going so far as to say that there is no more leisure in a naval officer's life than in some other pursuits—social engagements, for instance, are largely eliminated when at sea—there is very much less than persons imagine; and what there is is broken up by numerous petty duties and incidents, of which people living on shore have no conception, because they have no experience. It is evident that the remark proceeds in most cases from the speaker's own consciousness of the unoccupied monotony of an ocean passage, in which, unless exceptionally observant, he has not even detected the many small but essential functions discharged by the officers of the ship, whom he sees moving about, but the aim of whose movements he does not understand. The passenger, as regards the economy of the vessel, is passive; he fails to comprehend, often even to perceive, the intense functional activity of brain and body which goes on around him—the real life of the organism.
In the progress of the world, nautical matters of every kind are to most men what the transactions of a single ship are to the passenger. They receive impressions, which they mistake for opinions—a most common form of error. These impressions are repeated from mouth to mouth, and having the common note of superficial observation, they are found to possess a certain resemblance. So they serve mutually to fortify one another, and to constitute a quasi public opinion. The repetition and stereotyping of impressions are greatly forwarded by the system of organized gossip which we call the press.
It is in consequence of this, quite as much as of the extravagances in a certain far from reputable form of journalism, that the power of the press, great as it unquestionably still is, is not what it should be. It intensifies the feeling of its own constituents, who usually take the paper because they agree with it; but if candid representation of all sides constitutes a fair attempt to instruct the public, no man expects a matter to be fairly put forward. So far does this go, in the experience of the present writer, that one of the most reputable journals in the country, in order to establish a certain extreme position, quoted his opinion in one paragraph, while omitting to give the carefully guarded qualification expressed in the very succeeding paragraph; whereby was conveyed, by implication, the endorsement of the extreme opinion advocated, which the writer certainly never held.
Direct misrepresentation, however, whether by commission or by omission, careless or wilful, is probably less harmful than the indirect injury produced by continual repetition of unintentional misconceptions. The former occurs generally in the case of living, present-moment questions; it reaches chiefly those already convinced; and it has its counteraction in the arguments of the other party, which are read by the appropriate constituency. The real work of those questions of the day goes on behind the scenes; and the press affects them, not because of its intrinsic power, but only in so far as it is thought to represent the trend of thought in a body of voters. On subjects of less immediate moment, as military and naval matters are—except when war looms near, and preparation is too late—men's brains, already full enough of pressing cares, refuse to work, and submit passively to impressions, as the eye, without conscious action, takes note of and records external incidents. Unfortunately these impressions, uncorrected by reflection, exaggerated in narration, and intensified by the repetition of a number of writers, come to constitute a body of public belief, not strictly rational in its birth or subsequent growth, but as impassive in its resistance to argument as it was innocent of mental process during its formation.
The intention of the present paper is to meet, and as far as possible to remove, some such current errors of the day on naval matters—popular misconceptions, continually encountered in conversation and in the newspapers.
Accepting the existence of the navy, and the necessity for its continuance—for some starting-point must be assumed—the errors to be touched upon are:
1. That the United States needs a navy "for defence only."
2. That a navy "for defence only" means for the immediate defence of our seaports and coast-line; an allowance also being made for scattered cruisers to prey upon an enemy's commerce.
3. That if we go beyond this, by acquiring any territory overseas, either by negotiation or conquest, we step at once to the need of having a navy larger than the largest, which is that of Great Britain, now the largest in the world.
4. That the difficulty of doing this, and the expense involved, are the greater because of the rapid advances in naval improvement, which it is gravely said make a ship obsolete in a very few years; or, to use a very favorite hyperbole, she becomes obsolete before she can be launched. The assertion of the rapid obsolescence of ships of war will be dwelt upon, in the hopes of contravening it.
5. After this paper had been written, the calamity to the United States ship Maine, in the harbor of Havana, elicited, from the mourning and consternation of the country, the evident tokens of other unreasoning apprehensions—springing from imperfect knowledge and vague impressions—which at least should be noticed cursorily, and if possible appeased.
First, the view that the United States should plan its navy—in numbers and in sizes of ships—for defence only, rests upon a confusion of ideas—a political idea and a military idea—under the one term of "defence." Politically, it has always been assumed in the United States, and very properly, that our policy should never be wantonly aggressive; that we should never seek our own advantage, however evident, by an unjust pressure upon another nation, much less by open war. This, it will be seen, is a political idea, one which serves for the guidance of the people and of the statesmen of the country in determining—not how war is to be carried on, which is a military question, but—under what circumstances war is permissible, or unjust. This is a question of civil policy, pure and simple, and by no means a military question. As a nation, we have always vehemently avowed that we will, and do, act justly; in practice, like other states, and like mankind generally, when we have wanted anything very badly, we have—at least at times—managed to see that it was just that we should have it. In the matter of general policy our hands are by no means clean from aggression. General Grant, after retiring from public life, maintained that the war with Mexico was an unjust war; a stigma which, if true, stains our possession of California and much other territory. The acquisition of Louisiana was as great an outrage upon the technical rights of Spain as the acquisition of Hawaii would be upon the technical rights of the fast-disappearing aborigines; and there can be little doubt that, although we did not go to war with Spain to get Florida, we made things so uncomfortable for her that she was practically forced at last to get out. It does not follow necessarily that any of these actions were wrong, even if we consider that the so-called legal rights of Mexico and Spain were set aside by the strong hand; for law is simply an invention of mankind to secure justice, and when justice, the natural rights of the greater number, is prevented by the legal, not the natural, rights of a few, the latter may be set aside, as it is at every election, where large minorities of people are forced to submit to what they consider grievous wrong. The danger incurred by overleaping law to secure what is right may be freely admitted; but no great responsibility, such as the use of power always is, can be exercised at all without some danger of abuse. However, be that as it may, there can be no question that in times past we have aggressed upon the legal rights of other states; and in the annexation of Louisiana we infringed the letter of our own Constitution. We broke the law in order to reach an end eminently beneficial to the majority of those concerned. Nevertheless, while thus aggressive on occasion, warring for offence and not for defence only, it is distinctly a good thing that we hold up the ideal, and persuade ourselves that we cherish it; that we prepare means of war only for defence. It is better honestly to profess a high standard, even if we fall from it at times, than wilfully to adopt a lower ideal of conduct.
The phrase "War for defence only" conveys, therefore, a political idea, and, as such, a proper and noble idea. Unfortunately, in our country, where almost all activities fall under two chief heads—politics and business—politics, the less sensitively organized but more forceful of the two, intrudes everywhere and masters everything. We dread standing armies. Why? Because standing armies, being organized masses of men, trained to obey capable leaders, may overcome the resistance of a people which is far greater in numbers, but unorganized. What are our politics now but organized masses of men, habituated to obey their leaders, among whom to change their vote is stigmatized as the treason of an Arnold, and between which the popular will is driven helplessly from side to side, like a shuttlecock between two battledores? Politics cleans our streets, regulates our education, and so on; it is not to be wondered at that it intrudes into the military sphere, with confidence all the greater because it is there especially ignorant. Let there be no misunderstanding, however. It is perfectly right that the policy of the country should dictate the character and strength of the military establishment; the evil is when policy is controlled by ignorance, summed up in a mistaken but captivating catchword—"for defence only."
Among all masters of military art—including therein naval art—it is a thoroughly accepted principle that mere defensive war means military ruin, and therefore national disaster. It is vain to maintain a military or naval force whose power is not equal to assuming the offensive soon or late; which cannot, first or last, go out, assail the enemy, and hurt him in his vital interests. A navy for defence only, in the political sense, means a navy that will only be used in case we are forced into war; a navy for defence only, in the military sense, means a navy that can only await attack and defend its own, leaving the enemy at ease as regards his own interests, and at liberty to choose his own time and manner of fighting.
It is to be observed also that the most beneficial use of a military force is not to wage war, however successfully, but to prevent war, with all its suffering, expense, and complication of embarrassments. Of course, therefore, a navy for defence only, from which an enemy need fear no harm, is of small account in diplomatic relations, for it is nearly useless as a deterrent from war. Whatever there may be in our conditions otherwise to prevent states from attacking us, a navy "for defence only" will not add to them. For mere harbor defence, fortifications are decisively superior to ships, except where peculiar local conditions are found. All our greatest cities on the Atlantic and Gulf coasts can be locally defended better by forts than by ships; but if, instead of a navy "for defence only," there be one so large that the enemy must send a great many ships across the Atlantic, if he sends any, then the question whether he can spare so great a number is very serious, considering the ever-critical condition of European politics. Suppose, for instance, we could put twenty battleships in commission for war in thirty days, and that we had threatening trouble with either Germany, France, Great Britain, or Russia. There is not one of these, except Great Britain, that could afford to send over here twenty-five battleships, which would be the very fewest needed, seeing the distance of their operations from home; while Great Britain, relying wholly on her navy for the integrity of her empire, equally cannot afford the hostility of a nation having twenty battleships, and with whom her points of difference are as inconsequential to her as they are with us.
