The beginning of the year saw the British armies, now more than fifty divisions strong, holding a front of a hundred and ten miles from Ypres to within a short distance of Roye. Thus, allowing for changes imposed by the fluctuations of war and attack, they lay:
The Second Army had the Salient: the First centred on Armentières; the Third (Gough’s) carried on to the south of Arras, where the Fifth held all along the valley of the Ancre and a portion of the old British line on the Somme. The Fourth joined the French left wing near Roye, and the French pressure worked in with ours.
From the Salient to the Somme battle-front, our line’s business was to draw as much as possible of the enemy’s strength. Therefore, our raids on that part of the line, during the latter half of 1916, were counted by the hundred; and in all that time, at no point on any given day there, could the Germans feel secure against our irruptions.
On the Somme our pressure was direct and, except for the weather, worked as continuously as a forest fire in fallen pine-needles. A fold of the hills might check it there; a bare ridge or a sodden valley hold it elsewhere for the while; but always it ate north and east across the stricken country, as division after division gathered, fought, won foothold, held it, dug in, and gave place to their unspent fellows beneath the cover of the advancing guns. Here is a mere outline of the work of a few weeks:
The affairs of the 15th and 25th of September (1916), when the Fourth Army pushed the line past Lesbœufs and Flers and beyond Gueudecourt on the right, knocked out, as we know, both battalions of the Irish Guards for the time being.
On the 27th and 28th of September the Second and First Canadian Divisions, with the Eleventh and Eighteenth of the Second Army Corps, captured Thiepval, the Stuff and Schwaben redoubts on the left of the line; while the Fifty-fifth and New Zealand Divisions made possible an advance on Le Sars and Eaucourt l’Abbaye villages in the centre, which, after four days’ continuous fighting by the Forty-seventh, Fiftieth, and Twenty-third Divisions, ended in the taking of Eaucourt l’Abbaye and Le Sars.
On the 7th of October the French Army attacked in the direction of Sailly-Saillisel, the Fourth Army chiming in along its whole front from Lesbœufs to Destremont farm, which had been taken by the Twenty-third Division on the 29th September. In this affair the Twenty-third Division captured Le Sars, and the Twentieth Division over a mile of trenches east of Gueudecourt.