They camped (July 27) in support near Bleuet farm, and, that evening, had word that our aeroplanes reported no Germans could be seen in the German front-line system, and that the 3rd Coldstream had sent patrols forward who were already established across the canal. As a matter of fact, the enemy was holding his front line in chains of single posts, preferring rather to fight for it than in it; and was relying on his carefully hidden ferro-concrete block-houses--later known as “pill-boxes”--which, as he had arranged them in the torn and marshy landscape, and along the line of the Ypres-Staden rail, could hold up and dissipate any average infantry attack. They were impervious to anything except direct hits of big stuff. Their weakness was the small size of the slit through which their machine-guns operated, and a certain clumsiness in the arrangement of the gun itself, which made it difficult to depress. Consequently, cool heads could crawl up and under, and rush the thing at close quarters. Whether the enemy believed there would be no serious attack at the junction of the French and British arms in the Boesinghe sector, or whether he drew his men out of the front line to give room for his barrages, may never be known. It is certain, however, that he left his front line immediately facing the Guards Division empty, and that miscalculation enabled the Guards to launch their attack without having first to fight their way across the canal. The Coldstream had possessed themselves promptly of the evacuated trenches, and there stayed for some time before the enemy realised what had happened, sent aeroplanes to locate the raiders, and tried--without success--to shell them back again. It was a quick, well-thought-out coup that saved very many good lives.