Kitabı oku: «Lessons of the war with Spain and other articles», sayfa 3

It is proper here to say, for the remark is both pertinent and most important, that coast defences and naval force are not interchangeable things; neither are they opponents, one of the other, but complementary. The one is stationary, the other mobile; and, however perfect in itself either may be, the other is necessary to its completeness. In different nations the relative consequence of the two may vary. In Great Britain, whose people are fed, and their raw materials obtained, from the outside world, the need for a fleet vastly exceeds that for coast defences. With us, able to live off ourselves, there is more approach to parity. Men may even differ as to which is the more important; but such difference, in this question, which is purely military, is not according to knowledge. In equal amounts, mobile offensive power is always, and under all conditions, more effective to the ends of war than stationary defensive power. Why, then, provide the latter? Because mobile force, whatever shape it take, ships or men, is limited narrowly as to the weight it can bear; whereas stationary force, generally, being tied to the earth, is restricted in the same direction only by the ability of the designer to cope with the conditions. Given a firm foundation, which practically can always be had, and there is no limit to the amount of armor,—mere defensive outfit,—be it wood, stone, bricks, or iron, that you can erect upon it; neither is there any limit to the weight of guns, the offensive element, that the earth can bear; only they will be motionless guns. The power of a steam navy to move is practically unfettered; its ability to carry weight, whether guns or armor, is comparatively very small. Fortifications, on the contrary, have almost unbounded power to bear weight, whereas their power to move is nil; which again amounts to saying that, being chained, they can put forth offensive power only at arm's length, as it were. Thus stated, it is seen that these two elements of sea warfare are in the strictest sense complementary, one possessing what the other has not; and that the difference is fundamental, essential, unchangeable,—not accidental or temporary. Given local conditions which are generally to be found, greater power, defensive and offensive, can be established in permanent works than can be brought to the spot by fleets. When, therefore, circumstances permit ships to be squarely pitted against fortifications,—not merely to pass swiftly by them,—it is only because the builders of the shore works have not, for some reason, possibly quite adequate, given them the power to repel attack which they might have had. It will not be asserted that there are no exceptions to this, as to most general rules; but as a broad statement it is almost universally true. "I took the liberty to observe," wrote Nelson at the siege of Calvi, when the commanding general suggested that some vessels might batter the forts, "that the business of laying wood against walls was much altered of late." Precisely what was in his mind when he said "of late" does not appear, but the phrase itself shows that the conditions which induced any momentary equality between ships and forts when brought within range were essentially transient.

As seaports, and all entrances from the sea, are stationary, it follows naturally that the arrangements for their defence also should, as a rule, be permanent and stationary, for as such they are strongest. Indeed, unless stationary, they are apt not to be permanent, as was conclusively shown in the late hostilities, where all the new monitors, six in number, intended for coast defence, were diverted from that object and despatched to distant points; two going to Manila, and stripping the Pacific coast of protection, so far as based upon them. This is one of the essential vices of a system of coast defence dependent upon ships, even when constructed for that purpose; they are always liable to be withdrawn by an emergency, real or fancied. Upon the danger of such diversion to the local security, Nelson insisted, when charged with the guard of the Thames in 1801. The block ships (floating batteries), he directed, were on no account to be moved for any momentary advantage; for it might very well be impossible for them to regain their carefully chosen positions when wanted there. Our naval scheme in past years has been seriously damaged, and now suffers, from two misleading conceptions: one that a navy is for defence primarily, and not for offensive war; the other, consequent mainly upon the first, that the monitor, being stronger defensively than offensively, and of inferior mobility, was the best type of warship. The Civil War, being, so far as the sea was concerned, essentially a coast war, naturally fostered this opinion. The monitor in smooth water is better able to stand up to shore guns than ships are which present a larger target; but, for all that, it is more vulnerable, both above water and below, than shore guns are if these are properly distributed. It is a hybrid, neither able to bear the weight that fortifications do, nor having the mobility of ships; and it is, moreover, a poor gun-platform in a sea-way.

There is no saying of Napoleon's known to the writer more pregnant of the whole art and practice of war than this, "Exclusiveness of purpose is the secret of great successes and of great operations." If, therefore, in maritime war, you wish permanent defences for your coasts, rely exclusively upon stationary works, if the conditions admit, not upon floating batteries which have the weaknesses of ships. If you wish offensive war carried on vigorously upon the seas, rely exclusively upon ships that have the qualities of ships and not of floating batteries. We had in the recent hostilities 26,000 tons of shipping sealed up in monitors, of comparatively recent construction, in the Atlantic and the Pacific. There was not an hour from first to last, I will venture to say, that we would not gladly have exchanged the whole six for two battleships of less aggregate displacement; and that although, from the weakness of the Spanish defences, we were able to hug pretty closely most parts of the Cuban coast. Had the Spanish guns at Santiago kept our fleet at a greater distance, we should have lamented still more bitterly the policy which gave us sluggish monitors for mobile battleships.

II

The Effect of Deficient Coast-Defence upon the Movements of the Navy.—The Military and Naval Conditions of Spain at the Outbreak of the War.

The unsatisfactory condition of the coast defences, whereby the navy lost the support of its complementary factor in the scheme of national sea power, imposed a vicious, though inevitable, change in the initial plan of campaign, which should have been directed in full force against the coast of Cuba. The four newer monitors on the Atlantic coast, if distributed among our principal ports, were not adequate, singly, to resist the attack which was suggested by the possibilities of the case—though remote—and still more by the panic among certain of our citizens. On the other hand, if the four were massed and centrally placed, which is the correct disposition of any mobile force, military or naval, intended to counteract the attack of an enemy whose particular line of approach is as yet uncertain, their sluggishness and defective nautical qualities would make them comparatively inefficient. New York, for instance, is a singularly central and suitable point, relatively to our northern Atlantic seaboard, in which to station a division intended to meet and thwart the plans of a squadron like Cervera's, if directed against our coast ports, in accordance with the fertile imaginations of evil which were the fashion in that hour. Did the enemy appear off either Boston, the Delaware, or the Chesapeake, he could not effect material injury before a division of ships of the Oregon class would be upon him; and within the limits named are found the major external commercial interests of the country as well as the ocean approaches along which they travel. But had the monitors been substituted for battleships, not to speak of their greater slowness, their inferiority as steady gun-platforms would have placed them at a serious disadvantage if the enemy were met outside, as he perfectly well might be.

It was probably such considerations as these, though the writer was not privy to them, that determined the division of the battle fleet, and the confiding to the section styled the Flying Squadron the defence of the Atlantic coast for the time being. The monitors were all sent to Key West, where they would be at hand to act against Havana; the narrowness of the field in which that city, Key West, and Matanzas are comprised making their slowness less of a drawback, while the moderate weather which might be expected to prevail would permit their shooting to be less inaccurate. The station of the Flying Squadron in Hampton Roads, though not so central as New York relatively to the more important commercial interests, upon which, if upon any, the Spanish attack might fall, was more central as regards the whole coast; and, above all, was nearer than New York to Havana and to Puerto Rico. The time element also entered the calculations in another way, for a fleet of heavy ships is more certainly able to put to sea at a moment's notice, in all conditions of tide and weather, from the Chesapeake than from New York Bay. In short, the position chosen may be taken to indicate that, in the opinion of the Navy Department and its advisers, Cervera was not likely to attempt a dash at an Atlantic port, and that it was more important to be able to reach the West Indies speedily than to protect New York or Boston,—a conclusion which the writer entirely shared.

The country, however, should not fail to note that the division of the armored fleet into two sections, nearly a thousand miles apart, though probably the best that could be done under all the circumstances of the moment, was contrary to sound practice; and that the conditions which made it necessary should not have existed. Thus, deficient coast protection reacts unfavorably upon the war fleet, which in all its movements should be free from any responsibility for the mere safety of the ports it quits. Under such conditions as then obtained, it might have been possible for Spain to force our entire battle fleet from its offensive undertaking against Cuba, and to relegate it to mere coast defence. Had Cervera's squadron, instead of being despatched alone to the Antilles, been recalled to Spain, as it should have been, and there reinforced by the two armored ships which afterwards went to Suez with Cámara, the approach of this compact body would have compelled our fleet to concentrate; for each of our divisions of three ships—prior to the arrival of the Oregon—would have been too weak to hazard an engagement with the enemy's six. When thus concentrated, where should it be placed? Off Havana, or at Hampton Roads? It could not be at both. The answer undoubtedly should be, "Off Havana;" for there it would be guarding the most important part of the enemy's coast, blocking the access to it of the Spanish fleet, and at the same time covering Key West, our naval base of operations. But if the condition of our coast defences at all corresponded to the tremors of our seaport citizens, the Government manifestly would be unable to hold the fleet thus at the front. Had it, on the contrary, been impossible for an enemy's fleet to approach nearer than three miles to our sea-coast without great and evident danger of having ships damaged which could not be replaced, and of wasting ammunition at ranges too long even for bombardments, the Spanish battle fleet would have kept away, and would have pursued its proper object of supporting their campaign in Cuba by driving off our fleet—if it could. It is true that no amount of fortification will secure the coasting trade beyond easy gunshot of the works; but as the enemy's battle fleet could not have devoted itself for long to molesting the coasters—because our fleet would thereby be drawn to the spot—that duty must have devolved upon vessels of another class, against which we also would have provided, and did provide, by the squadron of cruisers under Commodore Howell. In short, proper coast defence, the true and necessary complement of an efficient navy, releases the latter for its proper work,—offensive, upon the open seas, or off the enemy's shores.

The subject receives further illumination when we consider, in addition to the hypothetical case just discussed,—the approach of six Spanish ships,—the actual conditions at the opening of the campaign. We had chosen Cuba for our objective, had begun our operations, Cervera was on his way across the ocean, and our battle fleet was divided and posted as stated. It was reasonable for us to estimate each division of our ships—one comprising the New York, Iowa, and Indiana, the other the Brooklyn, Massachusetts, and Texas—as able to meet Cervera's four, these being of a class slightly inferior to the best of ours. We might at least flatter ourselves that, to use a frequent phrase of Nelson's, by the time they had soundly beaten one of these groups, they would give us no more trouble for the rest of the year. We could, therefore, with perfect military propriety, have applied the two divisions to separate tasks on the Cuban coast, if our own coast had been adequately fortified.

The advantage—nay, the necessity—of thus distributing our battleships, having only four enemies to fear, will appear from a glance at the map of Cuba. It will there be seen that the island is particularly narrow abreast of Havana, and that from there, for a couple of hundred miles to the eastward, extends the only tolerably developed railroad system, by which the capital is kept in communication with the seaports, on the north coast as far as Sagua la Grande, and on the south with Cienfuegos and Batabano. This narrowness, and the comparative facility of communication indicated by the railroads, enabled Spain, during her occupation, effectually to prevent combined movements between the insurgents in the east and those in the west; a power which Weyler endeavored to increase by the trocha system,—a ditch or ditches, with closely supporting works, extending across the island. Individuals, or small parties, might slip by unperceived; but it should have been impossible for any serious co-operation to take place. The coast-wise railroads, again, kept Havana and the country adjacent to them in open, if limited, communication with the sea, so long as any one port upon their lines remained unblockaded. For reasons such as these, in this belt of land, from Havana to Sagua and Cienfuegos, lay the chief strength of the Spanish tenure, which centred upon Havana; and in it the greatest part of the Spanish army was massed. Until, therefore, we were ready to invade, which should not have been before the close of the rainy season, the one obvious course open to us was to isolate the capital and the army from the sea, through which supplies of all kinds—daily bread, almost, of food and ammunition—were introduced; for Cuba, in these respects, produces little.

To perfect such isolation, however, it was necessary not only to place before each port armed cruisers able to stop merchant steamers, but also to give to the vessels so stationed, as well on the south as on the north side, a backbone of support by the presence of an armored fleet, which should both close the great ports—Havana and Cienfuegos—and afford a rallying-point to the smaller ships, if driven in by the appearance of Cervera's division. The main fleet—three armored ships—on the north was thus used, although the blockade, from the fewness of available cruisers, was not at first extended beyond Cardenas. On the south a similar body—the Flying Squadron—should from the first have been stationed before Cienfuegos; for each division, as has been said, could with military propriety have been risked singly against Cervera's four ships. This was not done, because it was possible—though most improbable—that the Spanish squadron might attempt one of our own ports; because we had not perfect confidence in the harbor defences; and because, also, of the popular outcry. Consequently, the extremely important port of Cienfuegos, a back door to Havana, was blockaded only by a few light cruisers; and when the Spanish squadron was reported at Curaçao, these had to be withdrawn. One only was left to maintain in form the blockade which had been declared; and she had instructions to clear out quickly if the enemy appeared. Neither one, nor a dozen, of such ships would have been the slightest impediment to Cervera's entering Cienfuegos, raising our blockade by force; and this, it is needless to add, would have been hailed in Spain and throughout the Continent of Europe as a distinct defeat for us,—which, in truth, it would have been, carrying with it consequences political as well as military.

This naval mishap, had it occurred, would have been due mainly to inadequate armament of our coasts; for to retain the Flying Squadron in the Chesapeake, merely as a guard to the coasting trade, would have been a serious military error, subordinating an offensive operation—off Cienfuegos—to one merely defensive, and not absolutely vital. "The best protection against an enemy's fire," said Farragut, "is a well-directed fire from our own guns." Analogically, the best defence for one's own shores is to harass and threaten seriously those of the opponent; but this best defence cannot be employed to the utmost, if the inferior, passive defence of fortification has been neglected. The fencer who wears also a breastplate may be looser in his guard. Seaports cannot strike beyond the range of their guns; but if the great commercial ports and naval stations can strike effectively so far, the fleet can launch into the deep rejoicing, knowing that its home interests, behind the buckler of the fixed defences, are safe till it returns.

The broader determining conditions, and the consequent dispositions made by the Government of the United States and its naval authorities, in the recent campaign, have now been stated and discussed. In them is particularly to be noted the crippling effect upon naval operations produced by the consciousness of inadequate coast defences of the permanent type. The sane conclusion to be drawn is, that while sea-coast fortification can never take the place of fleets; that while, as a defence even, it, being passive, is far inferior to the active measure of offensive defence, which protects its own interests by carrying offensive war out on to the sea, and, it may be, to the enemy's shores; nevertheless, by the fearless freedom of movement it permits to the navy, it is to the latter complementary,—completes it; the two words being etymologically equivalent.

The other comments hitherto made upon our initial plan of operations—for example, the impropriety of attempting simultaneous movements against Puerto Rico and Cuba, and the advisability or necessity, under the same conditions, of moving against both Cienfuegos and Havana by the measure of a blockade—were simply special applications of general principles of warfare, universally true, to particular instances in this campaign. They address themselves, it may be said, chiefly to the soldier or seaman, as illustrating his especial business of directing war; and while their value to the civilian cannot be denied,—for whatever really enlightens public opinion in a country like ours facilitates military operations,—nevertheless the function of coast defence, as contributory to sea power, is a lesson most necessary to be absorbed by laymen; for it, as well as the maintenance of the fleet, is in this age the work of peace times, when the need of preparation for war is too little heeded to be understood. The illustrations of the embarrassment actually incurred from this deficiency in the late hostilities are of the nature of an object lesson, and as such should be pondered.

At the same time, however, that attention is thus called to the inevitable and far-reaching effect of such antecedent neglects, shown in directions where men would not ordinarily have expected them, it is necessary to check exaggeration of coast defence, in extent or in degree, by remarking that in any true conception of war, fortification, defence, inland and sea-coast alike, is of value merely in so far as it conduces to offensive operations. This is conspicuously illustrated by our recent experience. The great evil of our deficiencies in coast armament was that they neutralized temporarily a large part of our navy; prevented our sending it to Cuba; made possible that Cervera's squadron, during quite an interval, might do this or that thing of several things thus left open to him, the result of which would have been to encourage the enemy, and possibly to produce political action by our ill-wishers abroad. Directly upon this consideration—of the use that the Flying Squadron might have been, if not held up for coast defence—follows the further reflection how much more useful still would have been a third squadron; that is, a navy half as large again as we then had. Expecting Cervera's force alone, a navy of such size, free from anxiety about coast defence, could have barred to him San Juan de Puerto Rico as well as Cienfuegos and Havana; or had Cámara been joined to Cervera, as he should have been, such a force would have closed both Cienfuegos and Havana with divisions that need not have feared the combined enemy. If, further, there had been a fourth squadron—our coast defence in each case remaining the same—our evident naval supremacy would probably have kept the Spanish fleet in Europe. Not unlikely there would have been no war; in which event, the anti-imperialist may observe there would, thanks to a great and prepared navy, have been no question of the Philippines, and possibly none of Hawaii.

In short, it is with coast defence and the navy as it is with numbers versus size in battleships. Both being necessary, the question of proportion demands close attention, but in both cases the same single principle dominates: offensive power, not defensive, determines the issues of war. In the solution of the problem, the extent to be given coast defence by fortification depends, as do all military decisions, whether of preparation or of actual warfare, upon certain well-recognized principles; and for a given country or coast, since the natural conditions remain permanent, the general dispositions, and the relative power of the several works, if determined by men of competent military knowledge, will remain practically constant during long periods. It is true, doubtless, that purely military conclusions must submit to some modification, in deference to the liability of a population to panics. The fact illustrates again the urgent necessity for the spread of sound elementary ideas on military subjects among the people at large; but, if the great coast cities are satisfied of their safety, a government will be able to resist the unreasonable clamor—for such it is—of small towns and villages, which are protected by their own insignificance. The navy is a more variable element; for the demands upon it depend upon external conditions of a political character, which may undergo changes not only sudden, but extensive. The results of the war with Spain, for instance, have affected but little the question of passive coast defence, by fortification or otherwise; but they have greatly altered the circumstances which hitherto have dictated the size of our active forces, both land and sea. Upon the greater or less strength of the navy depends, in a maritime conflict, the aggressive efficiency which shortens war, and so mitigates its evils. In the general question of preparation for naval war, therefore, the important centres and internal waterways of commerce must receive local protection, where they are exposed to attack from the sea; the rest must trust, and can in such case safely trust, to the fleet, upon which, as the offensive arm, all other expenditure for military maritime efficiency should be made. The preposterous and humiliating terrors of the past months, that a hostile fleet would waste coal and ammunition in shelling villages and bathers on a beach, we may hope will not recur.

Before proceeding to study the operations of the war, the military and naval conditions of the enemy at its outbreak must be briefly considered.

Spain, being a state that maintains at all times a regular army, respectable in numbers as well as in personal valor, had at the beginning, and, from the shortness of the war, continued to the end to have a decided land superiority over ourselves. Whatever we might hope eventually to produce in the way of an effective army, large enough for the work in Cuba, time was needed for the result, and time was not allowed. In one respect only the condition of the Peninsula seems to have resembled our own; that was in the inadequacy of the coast defences. The matter there was even more serious than with us, because not only were the preparations less, but several large sea-coast cities—for instance, Barcelona, Malaga, Cadiz—lie immediately upon the sea-shore; whereas most of ours are at the head of considerable estuaries, remote from the entrance. The exposure of important commercial centres to bombardment, therefore, was for them much greater. This consideration was indeed so evident, that there was in the United States Navy a perceptible current of feeling in favor of carrying maritime war to the coast of Spain, and to its commercial approaches.

The objection to this, on the part of the Navy Department, was, with slight modifications, the same as to the undertaking of operations against Puerto Rico. There was not at our disposition, either in armored ships or in cruisers, any superfluity of force over and above the requirements of the projected blockade of Cuba. To divert ships from this object, therefore, would be false to the golden rule of concentration of effort,—to the single eye that gives light in warfare. Moreover, in such a movement, the reliance, as represented in the writer's hearing, would have been upon moral effect, upon the dismay of the enemy; for we should soon have come to the end of our physical coercion. As Nelson said of bombarding Copenhagen, "We should have done our worst, and no nearer friends." The influence of moral effect in war is indisputable, and often tremendous; but like some drugs in the pharmacopœia, it is very uncertain in its action. The other party may not, as the boys say, "scare worth a cent;" whereas material forces can be closely measured beforehand, and their results reasonably predicted. This statement, generally true, is historically especially true of the Spaniard, attacked in his own land. The tenacity of the race has never come out so strongly as under such conditions, as was witnessed in the old War of the Spanish Succession, and during the usurpation of Napoleon.

On the other hand, such an enterprise on our part, if directed against Spanish commerce on the seas, as was suggested by several excellent officers, would have had but a trivial objective. The commerce of Spain was cut up, root and branch, by our expeditions against her colonies, Cuba and Manila; for her most important trade depended upon monopoly of the colonial markets. The slight stream of traffic maintained in Spanish bottoms between the English Channel and the Peninsula, was so small that it could readily have been transferred to neutral ships, whose flag we had for this war engaged should protect enemy's goods. Under these circumstances, the coasts of the Philippines and of Cuba were to us the coast of Spain, and far more conveniently so than that of the home country would have been. A Spanish merchant captain, writing from Barcelona as early as the 7th of May, had said: "At this moment we have shut up in this port the [steam] fleets of five transatlantic companies," which he names. "The sailing-vessels are tied up permanently. Several [named] ships have fallen into the hands of the enemy. Meantime the blockade of Cuba, Puerto Rico, and Manila continues, at least for our flag, and maritime commerce is at a standstill. In Barcelona some foreign firms, exporters to the Philippines, have failed, as well as several custom-house brokers, owing to the total cessation of mercantile movement. The losses already suffered by our trade are incalculable, amounting to much more than the millions needed to maintain a half-dozen armored ships, which would have prevented the Yankees from daring so much." These vessels continued to lie idle in Barcelona until the dread of Commodore Watson's threatened approach caused them to be sent to Marseilles, seeking the protection of the neutral port. A few weeks later the same Spanish writer comments: "The result of our mistakes," in the management of the navy, "is the loss of the markets of Cuba, Puerto Rico, and the Philippines, and, in consequence, the death of our merchant marine." Inquiries were addressed by the state to the Chambers of Commerce, for suggestions as to the opening of new markets, to compensate for the existing suspension of communications with "the over-sea provinces."

With such results from our operations in the Antilles and the Philippines, there was no inducement, and indeed no justification, for sending cruisers across the ocean, until we had enough and to spare for the blockade of Cuba and Puerto Rico. This was at no time the case, up to the close of the war, owing to a combination of causes. The work of paralyzing Spanish trade was being effectually done by the same measures that tended to strangle the Spanish armies in Cuba and the Philippines, and which, when fully developed, would entirely sever their necessary communications with the outside world. Besides all this, the concentration of our efforts upon Cuba, with a subsequent slight extension to the single port of San Juan in Puerto Rico, imposed upon Spain the burden of sustaining the war between three and four thousand miles from home, and spared us the like additional strain. Every consideration so far entertained, therefore, of energy as well as of prudence, dictated the application of all the pressure at our disposal at the beginning of hostilities, and until the destruction of Cervera's squadron, upon Cuba, and in a very minor degree upon Puerto Rico. Indeed, the ships placed before San Juan were not for blockade, properly so called, but to check any mischievous display of energy by the torpedo cruiser within.