The same routine continued until December 12, when a most successful raid on the enemy's trenches was carried out. At 8.15 P.M. Captain Sir Robert Filmer, accompanied by Sergeant Higgins and three men in No. 3 Company, went out to make a preliminary reconnaissance. By crawling right up to the enemy's trenches he succeeded in locating the exact position of the German machine-guns, and was able to confirm the report as to the gap in the enemy's wire entanglements. Captain Sir R. Filmer, who had already earned a name for bravery, crept quite alone down the entire length of the German trench, and carefully noted all he saw. On his return to our line the final orders were issued to the raiding party, consisting of thirty-three men from No. 3 Company, and the Battalion bombers under Lieutenant G. Ponsonby. The night was very dark, and it was difficult to see any landmarks. Sergeant Higgins led the party over the parapet at 11 P.M., and was followed by Captain Sir R. Filmer and a covering party. Silently they advanced, but lost direction slightly to the left, with the result that they missed the gap and found themselves held up by low wire entanglement. Sir R. Filmer came up to ascertain the cause of the delay, and after considering the situation decided to cut the wire and rush the trench. The wire-cutting was successfully done, although only a few yards from the German line, and the party, headed by Sergeant Higgins, dashed into the trench. At the same time our artillery, in accordance with a previously conceived arrangement, opened a most effective barrage of fire, which continued until the party returned. Then bombing and bayoneting began in earnest, and the Germans were completely cleared out of the trench. The machine-guns, which were found to be too securely fixed to take away, were destroyed by bombs. It was during this trench fighting that the bombing officer, Lieutenant G. Ponsonby, was badly wounded in the leg. Private W. Sweetman, finding him unable to move, carried him on his back under heavy fire to our lines. The other casualties were one man missing and three wounded. This small number of casualties proved how well arranged the raid had been, and how brilliantly it had been carried out. General Sir Douglas Haig commanding the First Army specially mentioned this raid in his report, and wrote: "A well-planned and well-executed operation, reflecting the highest credit on all concerned, from Colonel Lord H. Seymour commanding the 4th Battalion Grenadier Guards downwards. The immediate rewards asked for have been well earned, and I shall have very great pleasure in recommending the names put forward." The following day at Riez Bailleul, Major-General Lord Cavan sent for and congratulated Captain Sir R. Filmer, Sergeant Higgins, and Private Sweetman on the success of the raid. He also congratulated the Battalion on having gained such a good reputation for digging and trench work.