There was much to be said for the policy, and even the strategy, which led to the Dardanelles expedition. Flanks had disappeared on the Western front; the lines extended from the Alps to the sea, and it was natural that, commanding the sea, we should seek to turn them farther afield. We had asked Russia to relieve the pressure on our Western front by using her military force in Prussia and Galicia; and it was reasonable enough for Russia to ask us to reciprocate and relieve the Turkish pressure on her flank in the Caucasus by a naval attack on Turkey. The German Fleet lay snug in port beyond the reach of naval power: could not our supremacy on the sea find an offensive function somewhere else? There was, moreover, our own position in Egypt to be defended; no one proposed evacuation, and the best defence of Egypt was a blow at the Dardanelles in the direction of Turkey's capital. It was, in fact, no more a dissipation of forces to send troops to force the Dardanelles than to send them to hold the Suez Canal, and from the point of view of policy, which was even more important, the effect of the expedition might be a concentration of power or Powers against the Central Empires. Serbia had successfully held the gate of the Balkans against Austria: Rumania's intervention would extend the lines of possible attack, Greece inclined in the same direction, and the forcing of the Dardanelles would assuredly have deterred Bulgaria from hostile intervention, and almost certainly have decided her to join a common Balkan move against the Teutons and the Turks. To the war on the Eastern and Western fronts, which was already a German nightmare, would be added one on an almost undefended Southern frontier. Austria could not long resist if Italy also intervened, and the collapse of the Hapsburg Empire would open up an advance against Germany from the south which would circumvent the Rhine and the Oder and turn the gigantic bastion she had constructed in France and Belgium into a house of cards. Well might the Dardanelles expedition be hailed in the press as a stroke of strategical genius and associated with Mr. Churchill's imagination. Easy also is it to understand the concentrated fear and force which the Germans put into Mackensen's coming drive in Galicia.

There is, indeed, less material for censure in the policy of the Dardanelles expedition than in the Allies' decision to couple with it a military offensive on the Western front and to divorce the naval and military efforts in the Aegean. Divided counsels produced divided efforts. Mr. Churchill, backed up, we are led to infer, by Mr. Lloyd George, secured his naval expedition; but he failed, until it was too late, to secure its military complement because the troops were earmarked for costly and premature attacks on the German lines in France. Deprived of this assistance, the naval expedition seems to have relied on the hope of Greek co-operation to the extent of two army corps, which Venizelos was only prevented from dispatching by the vigour of the Prussian Queen of Greece and by the veto of the King. Possibly there was precipitation, for the naval attack did not await the arrival of the military forces, which were before long on the way, extorted, it would seem, by impetuous pressure from a reluctant and unconvinced authority.

For this purely naval attack on the defences of the Dardanelles there is little to be said; for no argument of advantage from success can justify an attempt which is fore-doomed to failure, and history demonstrated beyond a doubt the strength of modern forts against the modern battleship. Nor was it in the Dardanelles a test between an ordinary sea attack and a normal land defence. The strength of the position attacked was trebled by the forts on both sides of the channel and by its twist at the Narrows, which enabled the land batteries to concentrate fire on the attacking fleet from in front as well as on both flanks. There was no room to manoeuvre in a channel less than a mile in width, and even when the mine-fields had been swept, the Turks could send fresh mines down the constant stream, and discharge torpedoes from hidden tubes along both shores. Against such formidable defences even the guns of the Queen Elizabeth were an inadequate attack, and forts that were said to be silenced repeatedly renewed their bombardment.

The first stage of the attack began on 19 February; it consisted in demolishing by concentric fire the outpost fortifications at Kum Kale and Cape Helles. This proved comparatively simple, and after a week of bad weather the mine-sweepers were able to clear the channel for four miles. It was a different matter when the real defences in the Narrows were attacked early in March. The chief bombardment was from outside in the Gulf of Saros, where it was hoped that the guns of the Queen Elizabeth and her consorts would by indirect fire dispose of Chanak and the other forts. None of them were, however, silenced with the possible exception of Dardanos, and Turkish howitzers, cunningly concealed in the scrub along the shore, provided an unpleasant surrise by hitting the Queen Elizabeth. Nevertheless, it was thought that enough had been effected to justify an attempt to force the Narrows on the 18th. Three successive squadrons of British and French ships were sent up the Straits, but the Turks had only waited till the channel was full of vessels to release their floating mines and land-torpedoes. First the French Bouvet, then the Irresistible, and thirdly the Ocean were struck by mines and sunk, the Bouvet with most of her crew. Three battleships and 2000 men had been lost in an attack which did not even reach the entrance to the Narrows; and for six weeks occasional bombardments hardly concealed the fact that the frustrated naval attack was awaiting the co-operation of the army to give it some chance of success.

More progress was happily made during the winter in still more distant spheres, although the conquest of German colonies was regarded by the pure strategist as belonging to the illegitimate and divergent rather than to the legitimate and subsidiary type of military operation. Policy may, however, outweigh strategy, and the circumstance that the victor only retains as the price of peace his conquests, or part of them, made in war, extenuates if it does not justify divergent operations. They were divergent enterprises which gave us India, Canada, and the Cape of Good Hope; and assuredly the defeat of Germany on the Western front would not alone have brought German colonies under the sceptre of a League of Nations. Even from the point of view of a strategy limited to Central Europe these operations had their value; for they enlisted against the common foe forces which would certainly not have been employed had we merely stood on the defensive in the overseas Dominions, and when their work was done in distant parts these forces gravitated towards the centre with a weight which would have grown more crushing had resistance been prolonged. Only surrender by the enemy stayed Allenby's and Marshall's Oriental hosts in Asia and anticipated the arrival on the Western front of further aid from Africa. A blow at the heart may be the normal strategy, but it is not the only nor always the best means of dealing with an antagonist clad in a breastplate of steel.

The scene of the least successful of these colonial wars was still East Africa. The reverse of Tanga in November was followed by another at Jassin on 19 January, and at the end of the winter the Germans could claim that their territory was clear of our troops while several German detachments were in ours; but we had seized the island of Mafia off the mouth of the Rufigi and declared a blockade of the German East African coast. On the other side of the continent we made steady progress in reducing the vast territory of the Cameroons; but the success of the season was Botha's conquest of German South-West Africa. The last remnants of the rebellion under Maritz and Kemp were stamped out at Upington on 3 February, and on 14 January Swakopmund was captured from the sea. Botha selected that as his base, while Smuts directed three columns farther south. The first advanced on the capital Windhoek from Luderitz Bay, the second from Warmbad near the Orange River, and the third from Kimberley. The second, under Van Deventer, had the heaviest work, but the fighting was not as a rule severe. The campaign was a triumph of forethought, strategy, and organization which left the Germans no choice but a series of retirements, culminating in the surrender of Windhoek on 12 May, and the capitulation of the entire remaining German forces at Grootfontein on 9 July.

On the sea the Germans had abandoned hope of victory. The balance of power in our favour, which had been insufficient to relieve Jellicoe of considerable anxiety, began to increase rapidly with the completion of the Queen Elizabeth class in April; and Germany turned her anticipatory gaze towards her submarines. Just as Napoleon's efforts by means of the Berlin and Milan decrees to ruin us by war on commerce came after the final collapse of his naval ambitions at Trafalgar, so Germany's submarine campaign followed upon her recognition of the hopelessness of her naval situation. On 18 February she proclaimed the waters round the British Isles a war zone in which enemy merchantmen would, and neutrals might, be sunk by submarines irrespective of the risks to non-combatants and neutrals. This was a flagrant violation of the rules of international law which safeguarded the shipping of neutrals, and only sanctioned the condemnation of contraband goods in prize courts, and the destruction of enemy vessels when they could not be taken into port and provision had been made for the safety of their crews and passengers. The German submarines were not in a position to guarantee any of these conditions; and trading on the legal maximum that no one can be required to do what is impossible, the Germans claimed immunity from these obligations.

To this the British Government replied on 1 March with a blockade which was more humane and more effective, but none the less involved an autocratic extension of belligerent rights. All oversea trade with Germany was to be as far as possible intercepted; goods, whether contraband or not, were at least to be detained; and the right of search was to be rendered more secure by being exercised in British ports, to which neutral ships were brought, instead of on the high seas amid the danger of submarine attack. These measures inflicted no loss of life and no loss of property that was not contraband. But they made havoc with the ideas that neutrals were entitled to trade with both belligerents, and that neither belligerent could intercept commerce which did not directly serve for military purposes. It was not, for instance, a breach of neutrality to sell munitions to a belligerent, though belligerents were entitled to seize them if they could; and we ourselves bought vast quantities from the United States. America was, however, deeply attached to that "freedom of the seas" which enabled neutrals to sell, without interference, goods which were not contraband, to either belligerent; and our extension of contraband to cover food supplies gave deep offence. The difficulty arose not only from the inevitable tendency of law to disappear amid the clash of arms, but from the modern absorption of all energies, civilian as well as military, in the warlike operations of the State. The food of civilians making munitions became a vital element in the conduct of war, and the distinction between civil and military purposes was lost in the fusion of all activities for a common end.

Disquieting as was the course of military operations during the spring, the diplomatic situation caused even more anxiety; and public opinion was as impervious to the one as to the other. American protests against our action on the seas were received with ill-concealed resentment, popular newspapers adjured the Government to "stand no nonsense from the United States," President Wilson's name was hissed by British audiences, and the man in the street seemed bent on estranging the neutral on whose assistance we were in the end to rely for victory in the war. It needed all the resources of an unpopular wisdom and diplomacy to steer between the Scylla of alienating friends by our blockade and the Charybdis of being, in Mr. Asquith's words, "strangled in a network of juridical niceties." The Germans came to our aid with a colossal crime. On 7 May the passenger-ship Lusitania was torpedoed off the south coast of Ireland with the loss of 1100 souls, many of them women and children, and some of them Americans; and the news was hailed in Germany with transports of delight from ministers of religion and all but an insignificant section of the people; medals were officially struck to commemorate the deed. British lives had been lost through Russian action off the Dogger Bank in 1904 without provoking war, and the sinking of the Lusitania did not precipitate war between Germany and the United States. But it eased the friction over our blockade, and gave for the first time some general American support to the pro-Entente sentiment which had from the beginning been strong in the New England States. A moral force was created in reserve which would in time redress the military disasters which the Entente had yet to encounter.