enemy. Our main battle zone should not be covered by a single trench, e.g. the Red Line (Bailleul), but should consist of at least three trenches with strong points so constructed as not to be apparent and obvious. As with garrisons of forward posts, so with garrisons of battle trenches, they should be constantly moved so as to avoid giving away the position actually held.”

A captured German officer of the 152nd I.R., 41st Division, gave as the main causes of the failure of the attack (a) the intensity of the machine-gun barrage, which caused heavy casualties. His regiment lost 12 officers and the 16th I.R. lost 24 officers; (b) watches did not appear to have been correctly synchronised. We have mentioned the service rendered by the Machine Gun Battalion, but, unfortunately, there is no record of Lieut.-Col. E. C. S. Jervis’ dispositions. This gallant and able officer says that the “tender spots” in his defence were the low ridges running due east and west through Bradford Post, and from Mill Post, south of Belvoir Alley, and then west. The former could not be covered by machine-gun fire, the latter was. And we know that the enemy, having exterminated the garrison, were mown down, in and round Gavrelle, from the indirect fire of fourteen machine-guns.

Apart from the heavy artillery fire, which, in itself, caused heavy casualties, Colonel Jervis points out an interesting feature in this battle: the complete mastery of the air which the enemy had throughout the day, resulting in machine-guns being spotted and engaged by low-flying aeroplanes, which also directed the fire of specially detailed heavy artillery. Needless to say, machine-guns are very vulnerable

to this form of attack; and we must also point out, having mentioned the capture of guns, that when once the enemy has penetrated the trench system machine-gunners have great difficulty in dealing with bombing attacks from the flanks. The Machine Gun Battalion, however, had a great opportunity in this battle, and took full advantage of it.

Brig.-Gen. Elkington expresses the opinion that this was the best action fought by the 56th Division. We do not go quite so far as this. It was more satisfactory to the troops, no doubt, but there is a great difference between defence and attack. A successful defence is more cheering to the infantry and artillery, inasmuch as they can more easily estimate the damage they do to the enemy; but it would not be fair to say that this was better than the hard fighting at Gommecourt and south of Arras in April 1917, or indeed on the Somme in 1916 and Ypres in 1917. The fact remains, however, that the 56th Division had, by its stout defence, twice saved the situation, which had been imperilled by enemy successes elsewhere.

CHAPTER VIII

THE ADVANCE TO VICTORY

BATTLE OF ALBERT 1918—BATTLE OF THE SCARPE 1918

It must not be thought that this first great German effort ended like Act I at a theatre, with a curtain dropping for fifteen minutes while the actors rested and changed their clothes, and the spectators found solace in nicotine or alcohol.