German submarine was threatening the naval supports. The Goliath had been sunk by a Turkish torpedo boat on 12 May, and the submarine disposed of the Triumph on the 26th and the Majestic on the following day. Silently the Queen Elizabeth and her more important consorts withdrew to safer waters, and the naval attempt to force the Dardanelles was gradually transformed into a military siege of the peninsula. The spring offensive of the Allies had gone to pieces everywhere except in the distant spheres of South Africa and Mesopotamia, while the German offensive was carrying all before it in Galicia. The first great disillusionment of the war was at hand, and its promised beginning in May looked uncommonly like a repetition of the previous August. Popular discontent focused itself on the lack of munitions, and especially of high-explosives, which "The Times" military correspondent declared on 14 May to have been a fatal bar to our success. "Some truth there was, but brewed and dashed with lies," as Dryden remarked of Titus Oates' plot. There were other bars as fatal, the lack of guns, men, and generalship; and the ultimate responsibility for the shortage rested with those experts, Allied as well as our own, who thought six Divisions an adequate British force when the war broke out. For the amount of high-explosive required depends upon the number of guns and gunners to use it and the length of line that is held; and experience of South African warfare had led generals to discount the value of heavy guns and high-explosive and to magnify that of mobility and mounted men. It was only when trenches stretching from the Alps to the sea were made impervious by German wire and concrete to assault that the need for unlimited high-explosive dawned on the minds of the higher commands. The French were able, thanks to the protection afforded by the British Navy, to divert labour from naval construction and repair to the production of munitions and even to send naval guns to the trenches. But that very fact added to the paramount claim of the navy in Great Britain for munitions; and a soldier must have been strangely blind to the debt the Empire and the Entente owed to the British Navy before he could urge his own Government to follow the French example.