Delphi Complete Works of Sir Arthur Conan Doyle (Illustrated) (1435 page)

But I am such an optimist as to say that there is no danger of a German war? On the contrary, I consider that there is a vast danger, that it is one which we ignore, and against which we could at a small cost effect a complete insurance. Let me try to define both the danger and the remedy. In order to do this we must consider the two different forms which such a war might take. It might be a single duel, or it might be with France as our ally. If Germany attacked Great Britain alone, it may safely be prophesied that the war would be long, tedious, and possibly inconclusive, but our role would be a comparatively passive one. ^ If she attacked France, however, that role would be much more active, since we could not let France go down, and to give her effective help we must land an expeditionary force upon the Continent. This force has to be supplied with munitions of war and kept up to strength, and so the whole problem becomes a more complex one.

The element of danger, which is serious in either form of war, but more serious in the latter, is the existence of new forms of naval warfare which have never been tested in the hands of competent men, and which may completely revolutionize the conditions. These new factors are the submarine and the airship. The latter, save as a means of acquiring information, does not seem to be formidable — or not sufficiently formidable to alter the whole conditions of a campaign. But it is different with the submarines. No blockade, so far as I can see, can hold these vessels in harbor, and no skill or bravery can counteract their attack when once they are within striking distance. One could imagine a state of things when it might be found impossible for the greater ships on either side to keep the seas on account of these poisonous craft No one can say beyond question that such a contingency is impossible. Let us see, then, how it would affect us if it should ever come to pass.

In the first place, it would not affect us at all as regards invasion or raids. If the German submarines can dominate our own large ships, our submarine can do the same for theirs. We should still hold the seas with our small craft Therefore, if Great Britain alone be at war with Germany, such a naval revolution would merely affect our commerce and food supply. What exact effect a swarm of submarines, lying off the mouth of the Channel and the Irish Sea, would produce upon the victualling of these islands is a problem which is beyond my conjecture. Other ships besides the British would be likely to be destroyed, and international complications would probably follow. I cannot imagine that such a fleet would entirely, or even to a very large extent, cut off our supplies. But it is certain that they would have the effect of considerably raising the price of whatever did reach us. Therefore, we should suffer privation, though not necessarily such privation as would compel us to make terms. From the beginning of the war, every home source would naturally be encouraged, and it is possible that before our external supplies were seriously decreased, our internal ones might be well on the way to make up the deficiency. Both of the two great protagonists — Lord Haldane and Lord Roberts — have declared that if we lost the command of the seas we should have to make peace. Their reference, however, was to complete naval defeat and not to such a condition of stalemate as seems to be the more possible alternative. As to complete naval defeat, our estimates, and the grand loyalty of the Overseas Dominions, seem to be amply adequate to guard against that. It is useless to try to alarm us by counting in the whole force of the Triple Alliance as our possible foes, for if they came into the war, the forces of our own allies would also be available. We need think only of Germany. A predominance of the submarine would, then, merely involve a period of hard times in this country, if we were fighting Germany single-handed. But if we were in alliance with France, it becomes an infinitely more important matter. I presume that I need not argue the point that it is our vital interest that France be not dismembered and sterilized. Such a tragedy would turn the western half of Europe into a gigantic Germany with a few insignificant States crouching about her feet. The period of her world dominance would then indeed have arrived. Therefore, if France be wantonly attacked, we must strain every nerve to prevent her going down, and among the measures to that end will be the sending of a British expeditionary force to cover the left or Belgian wing of the French defenses. Such a force would be cbnveyed across the Channel in perhaps a hundred troopships, and would entail a constant service of transports afterwards to carry its requirements.

Here lies, as it seems to me, the possible material for a great national disaster. Such a fleet of transports cannot be rushed suddenly across. Its preparation and port of departure are known. A single submarine amid such a fleet would be like a fox in a poultry yard, destroying victim after victim. The possibilities are appalling, for it might be not one submarine, but a squadron. The terrified transports would scatter over the ocean to find safety in any port. Their convoy could do little to help them. It would be a
débâcle
— an inversion of the Spanish Armada.

If the crossing were direct from the eastern ports to Antwerp, the danger would become greater. It is less if it should be from Portsmouth to Havre. But this a transit of seven hours, and the railways from Havre to the Belgian frontier would be insufficient for such a force. No doubt the Straits of Dover would be strongly patrolled by our own torpedo craft, and the crossing would, so far as possible, be made at night, when submarines have their minimum of efficiency; but, none the less, it seems to me that the risk would be a very real and pressing one. What possible patrol could make sure of heading off a squadron of submarines? I should imagine it to be as difficult as to bar the Straits to a school of whales.

But supposing such a wholesale tragedy were avoided, and that in spite of the predominance of submarines the army got safely to France or to Belgium, how are we to ensure the safe passage of the long stream of ships which, for many months, would be employed in carrying the needful supplies? We could not do it. The army might very well find itself utterly isolated, with its line of communications completely broken down, at a time when the demand upon the resources of all Continental countries was so great that there was no surplus for our use. Such a state of affairs seems to me to be a perfectly possible one, and to form, with the chance of a disaster to the transports, the greatest danger to which we should be exposed in a German war. But these dangers and the food question, which has already been treated, can all be absolutely provided against in a manner which is not only effective, but which will be of equal value in peace and in war. The Channel Tunnel is essential to Great Britain’s safety.

I will not dwell here upon the commercial or financial advantages of such a tunnel. Where the trade of two great nations concentrates upon one narrow tube, it is obvious that whatever corporation controls that tube has a valuable investment if the costs of construction have not been prohibitive. These costs have been placed as low as five million pounds by Mr. Rose Smith, who represents a practical company engaged in such work. If it were twice, thrice, or four times that sum it should be an undertaking which should promise great profits, and for that reason should be constructed by the nation, or nations, for their common national advantage. It is too vital a thing for any private company to control.

But consider its bearings upon a German war. All the dangers which I have depicted are eliminated. We tap (via Marseilles and the tunnel) the whole food supply of the Mediterranean and the Black Sea. Our expeditionary force makes its transit, and has its supplies independent of weather or naval chances. Should anything so unlikely as a raid occur, and the forces in the country seem unable to cope with it, a Franco-British reinforcement can be rushed through from the Continent. The Germans have made great works like the Kiel Canal in anticipation of war. Our answer must be the Channel Tunnel, linking us closer to our ally.

Though this scheme was discarded (under very differest naval and political conditions) some twenty years ago, no time has, as a matter of fact, been lost by the delay; as I am informed that machinery for boring purposes has so enormously improved that what would have taken thirty years to accomplish can now be done in three. If this estimate be correct, there may still be time to effect this essential insurance before the war with which General von Bernhardi threatens us breaks upon us.

Let us, before leaving the subject, glance briefly at the objections which have formerly been urged against the tunnel. Such as they are, they are as valid now as ever, although the advantages have increased to such an extent as to throw the whole weight of the argument upon the side of those who favor its construction. The main (indeed, the only) objection was the fear that the tunnel would fall into wrong hands and be used for purposes of invasion. By this was meant not a direct invasion through the tunnel itself — to invade a nation of forty-five million people through a hole in the ground twenty-five miles long would stagger the boldest mind — but that the tunnel might be seized at each end by some foreign nation, which would then use it for aggressive military purposes.

At the time of the discussion our relations with France were by no means so friendly as they are now, and it was naturally to France only that we alluded, since they would already hold one end of the tunnel We need not now discuss any other nation, since any other would have to seize both ends by surprise, and afterwards retain them, which is surely inconceivable. We are now bound in close ties of friendship and mutual interest to France. We have no right to assume that we shall always remain on as close a footing, but as our common peril seems likely to be a permanent one, it is improbable that there will be any speedy or sudden change in our relations. At the same time, in a matter so vital as our hold upon the Dover end of the tunnel, we could not be too stringent in our precautions. The tunnel should open out a point where guns command it, the mouth of it should be within the lines of an entrenched camp, and a considerable garrison should be kept permanently within call. The latter condition already exists in Dover, but the numbers ‘ might well be increased. As an additional precaution, a passage should be driven alongside the tunnel, from which it could, if necessary, be destroyed. This passage should have an independent opening within the circle of a separate fort, so that the capture of the end of the tunnel would not prevent its destruction. ‘With such precautions as these, the most nervous might feel that our insular position had not really been interfered with. The strong fortress of Sie Middle Ages had a passage under the moat as part of the defence. This is our passage.

Could an enemy in any way destroy it in time of war?

It would, as I conceive it, be sunk to a depth of not less than two hundred feet below the bed of the ocean. This ceiling would be composed of chalk and clay. No explosive form above could drive it in. If it were designed on a large scale — and, personally, I think it should be a four-line tunnel, even if the cost were doubled thereby — no internal explosion, such as might be brought about by secreting explosive packets upon the trains, would be likely to do more than temporarily obstruct it. If the very worst happened, and it were actually destroyed, we should be no worse off than we are now. As to the expense, if we are driven into a war of this magnitude, a few millions one way or the other will not be worth considering.

Incidentally, it may be noted that General von Bernhardi has a poor opinion of our troops. This need not trouble us. We are what we are, and words will not alter it. From very early days our soldiers have left their mark upon Continental warfare, and we have no reason to think that we have declined from the manhood of our forefathers. He further calls them “mercenaries,” which is a misuse of terms. A mercenary is a man who is paid to fight in a quarrel which is not his own. As every British soldier must by law be a British citizen, the term is absurd What he really means is that they are not conscripts in the sense of being forced to fight, but that they are sufficiently well paid to enable the army as a profession to attract a sufficient number of our young men to the colors.

Our military and naval preparations are, as it seems to me, adequate for the threatened crisis. With the Channel Tunnel added our position should be secure. But there are other preparations which should be made for such a contest, should it unhappily be forced upon us. One is financial. Again, as so often before in the history of British wars, it may prove that the last guinea wins. Everything possible should be done to strengthen British credit. This crisis cannot last indefinitely. The cloud will dissolve or burst. Therefore, for a time we should husband our resources for the supreme need. At such a time all national expenditure upon objects which only mature in the future becomes unjustifiable. Such a tax as the undeveloped land tax, which may bring in a gain some day, but at present costs ten times what it produces, is the type of expenditure I mean. I say nothing of its justice or injustice, but only of its inopportuneness at a moment when we sorely need our present resources.

Another preparation lies in our national understanding of the possibility of such a danger and the determination to face the facts. Both Unionists and Liberals have shown their appreciation of the situation, and so have two of the most famous Socialist leaders. No audible acquiescence has come from the ranks of the Labor Party. I would venture to say one word here to my Irish fellow- countrymen of all political persuasions. If they imagine that they can stand politically or economically while Britain falls, they are woefully mistaken. The British Fleet is their one shield. If it be broken, Ireland will go down. They may well throw themselves heartily into the common defence, for no sword can transfix England without the point reaching Ireland behind her.