The Germans were acutely uneasy as to the erosion of their line which was going on from Longueval to Guillemont, and upon August 23 endeavoured to win back the ground gained at Guillemont Station, but their counter-attack, stronger as usual in its artillery preparation than in its infantry advance, had no success, though it cost the Twentieth Division some heavy losses. It was one clear sign of the degeneration of the German soldier that the overture should so continually be better than the performance. The machines were as formidable as ever, but the human element was slowly wilting, and that subtle sentiment was developing upon either side which means the ascendancy of one and the decline of the other. The ease with which the prisoners surrendered, the frequent failure to hold ground and the constant failure to gain it, all pointed to the same conclusion. Upon August 24 a very widespread and determined attempt was made by the British to enlarge their area on the right wing, and the attack extended along the whole line to the north of Guillemont. It was carried out by three divisions, the Thirty-third which had side-stepped to the right, and now covered the ground to the immediate left of Delville Wood, the Fourteenth Light Division which covered the north of Delville Wood and the Alcohol system of trenches, and finally {218} the Twentieth Division covering Ginchy and the rest of the line down to Guillemont. Describing these operations from the left of our line the first unit of attack was the 100th Brigade, which had for its objective Tea Trench and other German defences which were to the north-west of Delville Wood. The Longueval-Flers road separated their right flank from the left flank of the 42nd Brigade of the Fourteenth Division. In order to carry out the attack the three leading battalions of the Brigade had to be crowded forward into a narrow front before daylight upon August 24.