The Tanks, however, arrived, and are reported to have “inflicted many casualties.” On September 26 fifteen Tanks operated near Zonnebeke Village. The attack was not a success, though the Tanks did a great deal of good work. On October 4 took place the last two actions of this battle in which Tanks succeeded in playing a part. The first was fought by twelve Tanks of the 1st Brigade, who had the honour of taking part in the capture of Poelcapelle. It was a most successful little attack, and after reducing three strong points which guarded the outskirts, the Tanks hunted through the main street and out beyond the village. In the other action four Tanks of the 1st Battalion were to take part in an attack upon Juniper Cottage on the line of the Reutelbeek. Not only was this, like the other, a successful little action, it was ennobled by affording the background to one of the most patiently courageous actions of the War. It was on October 4 that Captain Robertson fell upon completing a service for which he was posthumously awarded the V.C. Tanks and infantry were to endeavour to cross the Reutelbeek and drive the enemy from the positions which they held on the further bank. There was only one bridge over the marshy stream. If, in the half-light of the early morning and in the confusion of battle, they missed this crossing-place, their one chance of success was gone. Captain Robertson, the officer commanding the section of Tanks, early realised that here lay the crux of the little operation for whose success he was responsible. For three days and nights he and his servant, Private Allen (subsequently awarded the D.C.M.), went carefully backwards and forwards over the ground under heavy fire, taping the routes for the Tanks. Working without a break, this task took him until half-past nine on the night before the action. It was time to get the machines up. He started out at once again with his Tanks. The weather was dark and misty, and from inside a Tank it was impossible to see the way over the heavily shelled ground. Captain Robertson therefore walked ahead; they reached the assembly point in good time, and at 6 a.m. on October 4 he led them into action. In imagining the rest of the story we are to remember that Captain Robertson had already been continuously under fire and without sleep for three days and nights. The roads and every other landmark had all been wiped out by the shelling, but the bridge still stood. Captain Robertson still led his Tanks on foot, facing besides the shells an intense close-range machine-gun and rifle fire. He must have known that to go forward on foot means certain death. He and his convoy were by now well ahead of the infantry. Still he led his Tanks on, carefully and patiently guiding them at a foot’s pace towards their objective.