Whilst the Army had lain in apparent torpidity during the summer--a torpidity which was only broken by the sharp engagements at Hooge and elsewhere--great preparations for a considerable attack had been going forward. For several months the sappers and the gunners had been busy concentrating their energies for a serious effort which should, as it was hoped, give the infantry a fair chance of breaking the German line. Similar preparations were going on among the French, both in Foch's Tenth Army to the immediate right of the British line, and also on a larger scale in the region of Champagne. Confining our attention to the British effort, we shall now examine the successive stages of the great action in front of Hulluch and Loos--the greatest battle, both as to the numbers engaged and as to the losses incurred, which had ever up to that date been fought by our Army. ------------------------------------------------------------------- {173} [Illustration: La Bassée-Loos area] ------------------------------------------------------------------- The four days which preceded the great attack {175} of September 25 were days of great activity. An incessant and severe bombardment was directed upon the German lines along the whole front, but especially in the sector to the immediate south of the La Bassée Canal, where the main thrust was to be made. To this severe fire the Germans made hardly any reply, though whether from settled policy or from a comparative lack of munitions is not clear. On each of the days a feint attack was made upon the German line so far as could be done without actually exposing the men. The troops for the assault were gradually brought into position, and the gas-cylinders, which were to be used for the first time, were sunk in the front parapets. The assault in the main area was to extend from the La Bassée Canal in the north to the village of Grenay in the south, a front of about seven miles, and it was to be supported and supplemented by many subsidiary attacks along the whole line up to the Ypres salient, and northwards still to where the monitors upon the coast held the German coastguards to their sand-dunes. For the moment we will deal only with the fortunes of the main attack. This was to be delivered by two army corps, both belonging to Haig's First Army, that tempered blade which has so often been the spear-head for the British thrust. The corps were the First (Hubert Gough's) and the Fourth (Rawlinson's). It will be remembered that a British army corps now consisted of three divisions, so that the storming line was composed of six divisions, or about seventy thousand infantry.