At several points on the long stretch of coast of which he was now the master, Napoleon equipped fleets that were to unite and win for him the command of the sea during a period long enough to permit the unobstructed passage of his invading army across the water which separated the starting points of his expedition from the United Kingdom. Command of the sea to be won by a powerful naval combination was thus an essential element in Napoleon's strategy at the time of Trafalgar. It was not in deciding what was essential that this soldier of stupendous ability erred: it was in choosing the method of gaining the essential that he went wrong. The British strategy adopted in opposition to that of Napoleon was based on the acquisition and preservation of the command of the sea. Formulated and carried into effect by seamen, it differed in some important features from his. We may leave out of sight for the moment the special arrangements made in the English Channel to oppose the movements of Napoleon's flotillas of gunboats, transport boats, and other small craft. The British strategy at the time of Trafalgar, as far as it was concerned with opposition to Napoleon's sea-going fleets, may be succinctly described as stationing off each of the ports in which the enemy's forces were lying a fleet or squadron of suitable strength. Though some of our admirals, notably Nelson himself, objected to the application of the term 'blockade' to their plans, the hostile ships were to this extent blockaded, that if they should come out they would find outside their port a British force sufficient to drive them in again, or even to defeat them thoroughly and destroy them. Beating them and thus having done with them, and not simply shutting them up in harbour, was what was desired by our admirals. This necessitated a close watch on the hostile ports; and how consistently that was maintained let the history of Cornwallis's command off Brest and of Nelson's off Toulon suffice to tell us.

The junction of two or more of Napoleon's fleets would have ensured over almost any single British fleet a numerical superiority that would have rendered the defeat or retirement of the latter almost certain. To meet this condition the British strategy contemplated the falling back, if necessary, of one of our detachments on another, which might be carried further and junction with a third detachment be effected. By this step we should preserve, if not a numerical superiority over the enemy, at least so near an equality of force as to render his defeat probable and his serious maltreatment, even if undefeated, a certainty. The strategic problem before our navy was, however, not quite so easy as this might make it seem. The enemy's concentration might be attempted either towards Brest or towards Toulon. In the latter case, a superior force might fall upon our Mediterranean fleet before our watching ships in the Atlantic could discover the escape of the enemy's ships from the Atlantic port or could follow and come up with them. Against the probability of this was to be set the reluctance of Napoleon to carry out an eccentric operation which a concentration off Toulon would necessitate, when the essence of his scheme was to concentrate in a position from which he could obtain naval control of the English Channel.

After the addition of the Spanish Navy to his own, Napoleon to some extent modified his strategic arrangements. The essential feature of the scheme remained unaltered. It was to effect the junction of the different parts of his naval force and thereupon to dominate the situation, by evading the several British fleets or detachments which were watching his. Before Spain joined him in the war his intention was that his escaping fleets should go out into the Atlantic, behind the backs, as it were, of the British ships, and then make for the English Channel. When he had the aid of Spain the point of junction was to be in the West Indies.

The remarkable thing about this was the evident belief that the command of the sea might be won without fighting for it; won, too, from the British Navy which was ready, and indeed wished, to fight. We now see that Napoleon's naval strategy at the time of Trafalgar, whilst it aimed at gaining command of the sea, was based on what has been called evasion. The fundamental principle of the British naval strategy of that time was quite different. So far from thinking that the contest could be settled without one or more battles, the British admirals, though nominally blockading his ports, gave the enemy every facility for coming out in order that they might be able to bring him to action. Napoleon, on the contrary, declared that a battle would be useless, and distinctly ordered his officers not to fight one. Could it be that, when pitted against admirals whose accurate conception of the conditions of naval warfare had been over and over again tested during the hostilities ended by the Peace of Amiens, Napoleon still trusted to the efficacy of methods which had proved so successful when he was outmanoeuvring and intimidating the generals who opposed him in North Italy? We can only explain his attitude in the campaign of Trafalgar by attributing to him an expectation that the British seamen of his day, tried as they had been in the fire of many years of war, would succumb to his methods as readily as the military formalists of central Europe.

Napoleon had at his disposal between seventy and eighty French, Dutch, and Spanish ships of the line, of which some sixty-seven were available at the beginning of the Trafalgar campaign. In January 1805, besides other ships of the class in distant waters or specially employed, we—on our side—had eighty ships of the line in commission. A knowledge of this will enable us to form some idea of the chances of success that would have attended Napoleon's concentration if it had been effected. To protect the passage of his invading expedition across the English Channel he did not depend only on concentrating his more distant fleets. In the Texel there were, besides smaller vessels, nine sail of the line. Thus the Emperor did what we may be sure any future intending invader will not fail to do, viz. he provided his expedition with a respectable naval escort. The British naval officers of the day, who knew what war was, made arrangements to deal with this escort. Lord Keith, who commanded in the Downs, had under him six sail of the line in addition to many frigates and sloops; and there were five more line-of-battle ships ready at Spithead if required.

There had been a demand in the country that the defence of our shores against an invading expedition should be entrusted to gunboats, and what may be called coastal small craft and boats. This was resisted by the naval officers. Nelson had already said, 'Our first defence is close to the enemy's ports,' thus agreeing with a long line of eminent British seamen in their view of our strategy. Lord St. Vincent said that 'Our great reliance is on the vigilance and activity of our cruisers at sea, any reduction in the number of which by applying them to guard our ports, inlets, and beaches would, in my judgment, tend to our destruction.' These are memorable words, which we should do well to ponder in these days. The Government of the day insisted on having the coastal boats; but St. Vincent succeeded in postponing the preparation of them till the cruising ships had been manned. His plan of defence has been described by his biographer as 'a triple line of barricade; 50-gun ships, frigates, sloops of war, and gun-vessels upon the coast of the enemy; in the Downs opposite France another squadron, but of powerful ships of the line, continually disposable, to support the former or attack any force of the enemy which, it might be imagined possible, might slip through the squadron hanging over the coast; and a force on the beach on all the shores of the English ports, to render assurance doubly sure.' This last item was the one that St. Vincent had been compelled to adopt, and he was careful that it should be in addition to those measures of defence in the efficacy of which he and his brother seamen believed. Concerning it his biographer makes the following remark: 'It is to be noted that Lord St. Vincent did not contemplate repelling an invasion of gunboats by gunboats,' &c. He objected to the force of sea-fencibles, or long-shore organisation, because he considered it more useful to have the sea-going ships manned. Speaking of this coastal defence scheme, he said: 'It would be a good bone for the officers to pick, but a very dear one for the country.'

The defence of our ocean trade entered largely into the strategy of the time. An important part was played by our fleets and groups of line-of-battle ships which gave usually indirect, but sometimes direct, protection to our own merchant vessels, and also to neutral vessels carrying commodities to or from British ports. The strategy of the time, the correctness of which was confirmed by long belligerent experience, rejected the employment of a restricted number of powerful cruisers, and relied upon the practical ubiquity of the defending ships, which ubiquity was rendered possible by the employment of very numerous craft of moderate size. This can be seen in the lists of successive years. In January 1803 the number of cruising frigates in commission was 107, and of sloops and smaller vessels 139, the total being 246. In 1804 the numbers were: Frigates, 108; sloops, &c., 181; with a total of 289. In 1805 the figures had grown to 129 frigates, 416 sloops, &c., the total being 545. Most of these were employed in defending commerce. We all know how completely Napoleon's project of invading the United Kingdom was frustrated. It is less well known that the measures for defending our sea-borne trade, indicated by the figures just given, were triumphantly successful. Our mercantile marine increased during the war, a sure proof that it had been effectually defended. Consequently we may accept it as established beyond the possibility of refutation that that branch of our naval strategy at the time of Trafalgar which was concerned with the defence of our trade was rightly conceived and properly carried into effect.

As has been stated already, the defence of our sea-borne trade, being in practice the keeping open of our ocean lines of communication, carried with it the protection, in part at any rate, of our transmarine territories. Napoleon held pertinaciously to the belief that British prosperity was chiefly due to our position in India. We owe it to Captain Mahan that we now know that the eminent American Fulton—a name of interest to the members of this Institution—told Pitt of the belief held abroad that 'the fountains of British wealth are in India and China.' In the great scheme of naval concentration which the Emperor devised, seizure of British Colonies in the West Indies had a definite place. We kept in that quarter, and varied as necessary, a force capable of dealing with a naval raid as well as guarding the neighbouring lines of communication. In 1803 we had four ships of the line in the West Indian area. In 1804 we had six of the same class; and in 1805, while the line-of-battle ships were reduced to four, the number of frigates was increased from nine to twenty-five. Whether our Government divined Napoleon's designs on India or not, it took measures to protect our interests there. In January 1804 we had on the Cape of Good Hope and the East Indies stations, both together, six sail of the line, three smaller two-deckers, six frigates, and six sloops, or twenty-one ships of war in all. This would have been sufficient to repel a raiding attack made in some strength. By the beginning of 1805 our East Indies force had been increased; and in the year 1805 itself we raised it to a strength of forty-one ships in all, of which nine were of the line and seventeen were frigates. Had, therefore, any of the hostile ships managed to get to the East Indies from the Atlantic or the Mediterranean ports, in which they were being watched by our navy, their chances of succeeding in their object would have been small indeed.

When we enter the domain of tactics strictly so-called, that is to say, when we discuss the proceedings of naval forces—whether single ships, squadrons, or fleets—in hostile contact with one another, we find the time of Trafalgar full of instructive episodes. Even with the most recent experience of naval warfare vividly present to our minds, we can still regard Nelson as the greatest of tacticians. Naval tactics may be roughly divided into two great classes or sections, viz. the tactics of groups of ships, that is to say, fleet actions; and the tactics of what the historian James calls 'single ship actions,' that is to say, fights between two individual ships. In the former the achievements of Nelson stand out with incomparable brilliancy. It would be impossible to describe his method fully in such a paper as this. We may, however, say that Nelson was an innovator, and that his tactical principles and methods have been generally misunderstood down to this very day. If ever there was an admiral who was opposed to an unthinking, headlong rush at an enemy, it was he. Yet this is the character that he still bears in the conception of many. He was, in truth, an industrious and patient student of tactics, having studied them, in what in these days we should call a scientific spirit, at an early period, when there was but little reason to expect that he would ever be in a position to put to a practical test the knowledge that he had acquired and the ideas that he had formed. He saw that the old battle formation in single line-ahead was insufficient if you wanted—as he himself always did—to gain an overwhelming victory. He also saw that, though an improvement on the old formation, Lord Howe's method of the single line-abreast was still a good deal short of tactical perfection. Therefore, he devised what he called, with pardonable elation, the 'Nelson touch,' the attack in successive lines so directed as to overwhelm one part of the enemy's fleet, whilst the other part was prevented from coming to the assistance of the first, and was in its turn overwhelmed or broken up. His object was to bring a larger number of his own ships against a smaller number of the enemy's. He would by this method destroy the part attacked, suffering in the process so little damage himself that with his whole force he would be able to deal effectively with the hostile remnant if it ventured to try conclusions with him. It is of the utmost importance that we should thoroughly understand Nelson's fundamental tactical principle, viz. the bringing of a larger number of ships to fight against a smaller number of the enemy's. There is not, I believe, in the whole of the records of Nelson's opinions and actions a single expression tending to show that tactical efficiency was considered by him to be due to superiority in size of individual ships of the same class or—as far as matériel was concerned—to anything but superior numbers, of course at the critical point. He did not require, and did not have, more ships in his own fleet than the whole of those in the fleet of the enemy. What he wanted was to bring to the point of impact, when the fight began, a larger number of ships than were to be found in that part of the enemy's line.

I believe that I am right in saying that, from the date of Salamis downwards, history records no decisive naval victory in which the victorious fleet has not succeeded in concentrating against a relatively weak point in its enemy's formation a greater number of its own ships. I know of nothing to show that this has not been the rule throughout the ages of which detailed history furnishes us with any memorial—no matter what the class of ship, what the type of weapon, what the mode of propulsion. The rule certainly prevailed in the battle of the 10th August 1904 off Port Arthur, though it was not so overwhelmingly decisive as some others. We may not even yet know enough of the sea fight in the Straits of Tsushima to be able to describe it in detail; but we do know that at least some of the Russian ships were defeated or destroyed by a combination of Japanese ships against them.