January
The Fifth Corps was formed at this period of three divisions, the Eleventh, Thirty-first, and Seventh. Each of these divisions by constant pressure and minor operations, backed by a powerful artillery fire, played a part in the wearing process of constant attrition which ended in making the position of the Germans impossible. On January 10, the 32nd Yorkshire Brigade of the Eleventh Division carried an important trench due east of Beaumont Hamel, taking 140 prisoners. On the next day the movement extended farther north, where three-quarters of a mile of trench with 200 prisoners was the prize. On January 17, another 600 yards north of Beaumont fell into British hands. Of the 1228 prisoners who were taken in January a considerable proportion came from this small section of the line, though the largest single haul consisted of 350 men who were captured by a brilliant advance of the Australians in the Le Transloy sector upon January 29.
February
The movement along the valley of the Ancre was continued in February, but at an accelerated pace, the Second Corps, which consisted of the Sixty-third, Eighteenth, and Second Divisions, moving in conformity with Fanshawe's men upon the northern bank. The chief initiative still rested with the latter, and upon February 3 another push forward of 500 yards upon a mile front yielded a hundred more prisoners, while two sharp counter attacks by the Germans only served to increase their losses. A number of small spurs run down to the river upon the northern bank, and each of these successive advances represented some fresh ridge surmounted. Upon February 6 the Second Corps was moving upon Beaucourt, which is to the immediate south of the river, and upon the 7th the village was evacuated—the first of that goodly list which was to adorn the official communiqués during the next two months. On the 9th the advance crept onwards upon both banks, gathering up a hundred prisoners, while eighty more were taken in Baillescourt Farm upon the north bank. These men were Hamburgers of the 85th Regiment. Upon February 10 the left of the Fifth Corps began to feel out towards Serre, that village of sinister memories, and 215 prisoners were taken from the trenches to the south of the hamlet. This provoked a new counter from the enemy which was beaten back upon February 12. A period of impossible weather suspended the advance, but again upon February 17 the British tide swelled suddenly into a wave which swept forward on either bank, engulfing some crowded trenches north of Baillescourt Farm, which yielded 12 officers and 761 men of the 65th, 75th, and 395th Prussians. The main success was gained by the Sixty-third Division upon the left of the Second Corps, but it was aided by the work of the Eighteenth and Second Divisions to the south of the Ancre. The latter met with strong resistance and had considerable losses. The burden of this work fell chiefly upon the 99th and 54th Brigades, both of which reached their objectives in the face of mist, darkness, uncut wire, heavy fire, and vigorous resistance. This blow stung the enemy into a sharp reaction, and three waves of infantry stormed up to the lost position, which for a time they entered, but were again beaten out of. During their temporary success they claim to have taken 130 prisoners.
February
All these advances, with their accompanying and ever-extending bombardments, had been like those multiplied causes, each small in itself, which eventually loosen and start a great landslide. The effect must undoubtedly have been begun some weeks before when the Germans perceived that they could no longer hold on, and favoured by wind, rain, and fog, started their rearward movement to the great permanent second line, the exact position of which was still vague to the Allies. Upon February 25 the whole German front caved in for a depth of three miles both north and south of the Ancre. Wading through seas of mud Gough's infantry occupied Serre, Pys, Miraumont, Eaucourt, Warlencourt, and all the ground for eleven miles from Gomiecourt in the north to Gueudecourt in the south. On February 28 Gomiecourt itself had been occupied by the North Country troops of the Thirty-first Division, while Puisieux and Thilloy had also been added to the British line. The advance was not unopposed. The battle-patrols continually extended to attack some trench of snipers or nest of machine-guns. Mined roads and all manner of obstructions impeded the onward flow of the army. The retreat was orderly and skilful, and the pursuit was necessarily slow and wary. By a pleasing coincidence the Thirty-first Division, which occupied Serre, was the same brave North Country Division which had lost so heavily upon July 1 and November 13 on the same front. On entering the village they actually found the bodies of some of their own brave comrades who had got as far forward seven months before.
March
On March 4 the advance which had steadily continued in the north spread suddenly southwards to Bouchavesnes north of Peronne, the sector held by the Twentieth and Forty-eighth Divisions of Rawlinson's Army, which from this time onward was more and more engaged in the forward movement. Three machine-guns and 172 prisoners were taken. There was some interruption of the operations at this stage owing to severe snowstorms, but upon March 10 Tries, west of Bapaume, was taken by assault by the Eighteenth Division. This was a formidable point, well wired and trenched, so that the artillery in full force was needed for preparation. The infantry went forward before sunrise, and within an hour the village with 15 machine-guns and 290 prisoners was in British hands. The losses were light and the gain substantial. Grevillers also fell next day. This advance in front of Bapaume was of importance as it turned Loupart Wood, forming part of a strong defensive line which might have marked the limit of the German retreat. It was clear from that day onwards that the movement was not local but far reaching. The enemy was still too strong to be hustled, however, especially upon the northern sector of the operations, where Jacob's Second Corps was feeling the German line along its whole front. An attempt at an advance at Bucquoy upon the night of March 13, carried out by the 137th Brigade of the Forty-sixth North Midland Division, met with a check, though most bravely attempted. The two battalions concerned, the 5th South Staffords and 5th North Staffords, found themselves entangled in the darkness amid uncut wire and suffered considerable loss before they could extricate themselves from an impossible position.
