The operations on the right and centre of the Third Army front now took the form of an advance to complete the possession of the Forest of Mormal. On November 5 the Thirty-third and Twenty-first Divisions were back in line, and, working in close liaison with the Eighteenth Division on the left of the Fourth Army, they pushed the advance up to the bank of the Sambre. Here it was found that all bridges had been destroyed, and there was a check while the Twenty-first to the north were making {246} good the rest of the Forest and breaking out in little groups of khaki from the eastern edge. That night they threw light bridges over the Sambre and got some infantry across, the line running from north of Leval to east of Berlaimont. The left of the Twenty-first Division was still west of the river. Next day, November 6, the remorseless advance still went on. Transport was failing, for the roads through the Forest were impossibly bad, but nothing could stop the eager infantry, who were in full cry with their quarry in the open. A number of villages were taken, each of which was full of machine-guns, and showed some fight. By dusk the line of the Avesnes-Bavay Road had been made good. On November 7 the German retreat still continued, but the British had still to fight their way and their progress was far from being a walking-tour. Both the Thirty-third and Twenty-first had a sharp fight before they could dislodge the rearguards from the Bois du Temple, Ecuelin, and Limont-Fontaine. Campbell's men had a particularly hard task with the latter, which was strongly garrisoned and stoutly defended, while the neighbouring village of Eclaises also presented a bold front. There was a real close infantry battle, with some savage house-to-house fighting, before these points could be cleared. 130 prisoners were taken. The war had now left the open arable country and come into the country of small enclosed orchards with high hedges, which blinded the German observers, since they had already lost command of the air. This was a very vital point. On November 8 the Welsh and Seventeenth were in the front line once more, and the enemy was found to be still very organised and resolute on this sector, {247} fighting hard and with some success to hold the line of a watercourse. Finally this opposition weakened, or it might be more fair to say that the brave rearguard, having done its work, was withdrawn. On November 9 the Fifth Corps got along rapidly, gaining the eastern edge of the Bois du Temple and the high ground east of Beaufort. For a time all contact was lost with the enemy, who were rapidly retreating, and they were not located again until they were on the line of the River Thure. The roads had been blown up, and pursuit was much retarded. The difficulties of the advance were much aggravated by the impossibility of getting the supplies forward. Many delay-action mines had gone up in the railways in the rear,