Another long lull followed this outburst of activity in the region of the La Bassée Canal, and the troops sank back once more into their muddy ditches, where, under the constant menace of the sniper, the bomb and the shell, they passed the weary weeks with a patience which was as remarkable as their valour. The British Army was still gradually relieving the French troops, who had previously relieved them. Thus in the north the newly-arrived Twenty-seventh and Twenty-eighth Divisions occupied several miles which had been held on the Ypres salient by General D'Urbal's men. Unfortunately, these two divisions, largely composed of men who had come straight from the tropics, ran into a peculiarly trying season of frost and rain, which for a time inflicted great hardship and loss upon them. To add to their trials, the trenches at the time they took them over were not only in a very bad state of repair, but had actually been mined by the Germans, and these mines were exploded shortly after the transfer, to the loss of the new occupants. The pressure of the enemy was incessant and severe in this part of the line, so that the losses of the Fifth Corps were for some weeks considerably greater than those of all the rest of the line put together. Two of the veteran brigades of the Second Corps, the 9th Fusilier Brigade (Douglas Smith) and the 13th (Wanless { 7} O'Gowan), were sent north to support their comrades, with the result that this sector was once again firmly held. Any temporary failure was in no way due to a weakness of the Fifth Army Corps, who were to prove their mettle in many a future fight, but came from the fact, no doubt unavoidable but none the less unfortunate, that these troops, before they had gained any experience, were placed in the very worst trenches of the whole British line. "The trenches (so called) scarcely existed," said one who went through this trying experience, "and the ruts which were honoured with the name were liquid. We crouched in this morass of water and mud, living, dying, wounded and dead together for 48 hours at a stretch." Add to this that the weather was bitterly cold with incessant rain, and more miserable conditions could hardly be imagined. In places the trenches of the enemy were not more than twenty yards off, and the shower of bombs was incessant.