When the batteries marched back to the wagon-lines on June 20th they knew that they were to set off next day to go into action immediately on another portion of the front, but their actual destination remained somewhat of a mystery. There was a rumour that they were going a considerable distance northwards, even to the Coast it was suggested, and therefore, when they set out in a southerly direction on the morning of the 21st, a certain amount of surprise prevailed amongst the rank and file. Southwards they headed, passing through Beaurains along the great road running down to Bapaume, and gradually they penetrated more and more deeply into the wilderness created by the enemy when he retreated to the Hindenburg Line in February and early March.

As events turned out, the march was to be a short one. After leaving the Bapaume road a few miles south of Arras, wagon-lines were established around Hamelincourt, Boyelles and Boiry St. Rictrude in the VII. Corps area, and one section per battery moved up into action the very same afternoon; the march had represented nothing more than a sideslip of some three miles to the right, but even this short distance brought the batteries into totally different surroundings. They were now moving through the country over which the enemy right had retired in his withdrawal earlier in the year, and on all sides they saw proof positive of the stories of destruction which had been related to them. Every tree, every bush, even the slender apple trees lay cut down and destroyed; roads had been blown up, houses demolished, and the country had the appearance of a great wilderness with every natural feature shaved off as though by a giant razor. The Bapaume road, no longer a stately route bordered by trees, lay like a piece of tape across the naked ground; houses gaped and tottered, blown up not by the shells of the pursuing army but by the prearranged handiwork of the retreating foe. It was a case of wanton destruction, wrath vented upon the countryside by a bitter and chagrined enemy, and, although it has been suggested that all this work was carried out in order to open the country for the great and last German drive westwards which was destined to begin some nine months later, there can be little doubt but that it was merely a continuance of that policy of frightfulness and destruction which marked all his doings.

ORDER OF BATTLE.

May—August 1917.

H.Q.R.A.
C.R.A.Brigade Major.Staff Captain.
Brig.-Gen. C. G. Stewart, C.M.G., D.S.O.Major T. E. Durie, M.C.Capt. W. E. Bownass, M.C.
156th Brigade.
Lieut.-Colonel B. A. B. Butler.
Adjutant: Capt. B. L. Oxley, M.C.
Capt. W. G. Sheeres.
"A" Battery."B" Battery."C" Battery."D" Battery.
Major H. McA. Richards, M.C.Major M. A. Studd, M.C.Major Barker, M.C.Major W. A. T. Barstow, M.C.
162nd Brigade.
Lieut.-Colonel Conolly.
Adjutant: Capt. R. H. Pavitt.
"A" Battery."B" Battery."C" Battery."D" Battery.
Major G. Fetherston, M.C.Major H. C. Cory.Major L. Hill.Major W. P. Colfox.
Major W. G. Pringle.Major Walker, D.S.O.

Despite this, very fair wagon-lines were obtainable around the ruins of the villages aforementioned, for the ground was dry and rolling and, there being no inhabitants in this area of desolation, there were no restrictions as to the setting up of horse-lines. Quickly the brigades settled down in their new surroundings, and as quickly the first sections moved up into action, to be followed next day by the remainder of the batteries.

Ever since May 12th General Stewart and his staff had been near Hamelincourt, controlling the artillery covering the infantry of the 33rd Division in the Bullecourt sector (at that time the 21st and 37th Divisional Artilleries, together with the 150th, 293rd and 79th Field Artillery Brigades), and on going into the line now the batteries came under the administration of the 50th Divisional Artillery. The 156th Brigade occupied the positions vacated by the 123rd Brigade of the 37th Division, situated east-south-east of Henin-sur-Cojeul and just west of the Hindenburg Line. The batteries of the 162nd Brigade were distributed at first amongst the 82nd, 83rd and 250th Brigade groups; ultimately, on the 23rd, they were placed under the control of the 250th (C and D/162) and the 251st (A and B/162) Brigade Groups, and supported the infantry from positions in Heninel (C/162) and east of Henin, all batteries except A/162 being just to the left of the 156th Brigade. The front covered by the brigades was roughly the line running southwards from Fontaine-lez-Croisilles nearly to Bullecourt.

This part of the front was of intense interest to the batteries. To begin with, they were in touch with the infantry of their own Division for the first time since February; the 162nd Brigade, it is true, was shooting over the trenches north of that part of the Hindenburg Line garrisoned by the 19th and 98th Infantry Brigades, but the 156th Brigade was actually covering the 33rd Divisional Infantry, and to the men there was a feeling almost of being home once more when they thus found themselves amongst their own. Added interest, moreover, was gained from the fact that the much-talked-of Hindenburg Line could here be examined, for the fall of Monchy had outflanked this part of the system, and the enemy with much reluctance but of dire necessity had had to retreat from it, leaving it to be occupied by our troops.

It was a mighty piece of fortification; in front of the fire-trench were three thick belts of wire thirty yards apart, each belt some fifteen yards deep; between the belts, which were so thick that hardly a mouse could get through them, lay concrete emplacements for machine guns or trench-mortars, reached from the front line by underground shafts. The fire-trench itself, about twelve feet in depth, contained concrete pill-boxes at every turn and on every tactical point, while the communication trenches running back to the support line were so wired as to form a defensive flank should any portion of the front be penetrated. On reaching the support line an exact replica of the fire-trench was met with; three belts of wire and the accompanying pill-boxes and machine-gun emplacements lay in front of the trench, but this time a further feature was added. Throughout the entire length of the Hindenburg support, from Beaurains right down to Bullecourt, there ran an underground tunnel seven feet high, three and a half feet wide and thirty feet below the surface. Shafts ran down to it at intervals of twenty yards, and to all intents and purposes it formed a vast dug-out exactly under the parapet of the trench and running beneath it throughout all the miles of its length. Its existence could only be proved as far as Bullecourt, for from that point onwards it was held by the enemy, but doubtless it continued southwards with the Hindenburg Line itself since, offering as it did a perfect refuge for the garrison, it formed an integral part of the defences of this great system. For that portion of the passage which lay in British hands a "Town Major" even had been appointed, and from him could be obtained so many yards of the dug-out as the lawful habitation of the unit on the spot!

The batteries were not slow to get to work here. June 22nd and 23rd were spent in registration of the zone and in careful study of the front to be covered. On the 23rd the 156th Brigade bombarded Tunnel Trench at 11.35 A.M. and 7.30 P.M., and at midnight on the 23rd/24th supported an attack on it by the 19th Infantry Brigade from Lump Lane. The attack proved unsuccessful, and throughout the 24th the bombardment was continued, while the 162nd Brigade took up the running on the left in an attack on York, Bush and Wood Trenches. The 5th E. Yorkshire Regiment (50th Div.) carried out this assault at 12.30 A.M. on the 26th, and at first were successful. All the objectives except for the cross-roads north-west of Fontaine-lez-Croisilles were gained, thirty prisoners were captured and two hostile counter-attacks driven off. There followed, however, such a deluge of hostile shell fire that the newly-gained trenches were entirely demolished, and a large part of the ground gained had to be relinquished.