Whilst the Germans were pushing forward at Canizy they had also maintained strong and continuous pressure upon the Thirtieth Division near Moyencourt, and upon the Thirty-sixth Division at Golancourt, causing the Ulster men, whose left wing was entirely in the air, to fall back westwards. The next line of defence, after the Somme had been forced, lies along what is called the Libermont Canal between Nesle and Libermont. It was necessary to fall back, fighting as best they could, and to place this obstacle, narrow as it was, between the weary soldiers and their pursuers. It was the third day since the men had had a decent meal or an uninterrupted rest, and they were very disorganised and broken. "Hundreds of men were streaming back," says one observer. "They had been without food for days and were done in completely. They were stopped and reformed at the bridges, where as many as 2000 were collected." It is such plain sobering sentences which help one to realise that war is not, as large scale descriptions might seem to imply, a question of the moving of pieces upon a board, but that underneath the strategy lie the countless human tragedies, the {165} tortured frames, the broken nerves, the prayers of brave men that they may still be brave, the torturing anxiety of officers, the ever-pressing burden which sometimes breaks the weary back which tries to hold it. Strategy reckons nothing of these things, but their accumulation makes up the terrible human tragedy of war, which brings humility to the most proud and fear to the most valiant. All equally feel the weakness of nature, but he is blessed who has the strength of spirit to cover and to combat it. By mid-day on March 24 the Thirtieth Division was over the Libermont Canal, holding from Buverchy to Libermont, with the village and bridge of Raincourt as a joining point between the 90th Brigade to the north and the 89th to the south. It may be recorded, to descend suddenly from divisions to individuals, that the first sign of the new German advance was a single scout who appeared in the open in front of the canal, and was engaged in a prolonged and deliberate rifle duel by Lieutenant Harrop, with the result that he was finally brought in as a wounded prisoner. The Twentieth Division had also fallen back, the orders of brigades from the south being the 60th with its flank on Buverchy, the 59th resting on Quiquery, and the 183rd to link up with the Eighth Division near Mesnil St. Nicaise. The Thirty-sixth Division prolonged the line to the south of Libermont. The French reinforcements from the south were beginning by the afternoon of this day to get as far north as this section, and if not very weighty at the moment they were of great moral use as a promise for the future.