Prisoners taken.

To sum up the results of the fighting of these five days, on a front of over six miles, from the Briqueterie to La Boisselle, our troops had swept over the whole of the enemy's first and strongest system of defense, which he had done his utmost to render impregnable. They had driven him back over a distance of more than a mile, and had carried four elaborately fortified villages. The number of prisoners passed back at the close of July 5, 1916, had already reached the total of ninety-four officers and 5,724 other ranks.

Readjustments and reliefs.

Contalmaison and Mametz Wood.

After the five days' heavy and continuous fighting just described it was essential to carry out certain readjustments and reliefs of the forces engaged. In normal conditions of enemy resistance the amount of progress that can be made at any time without a pause in the general advance is necessarily limited. Apart from the physical exhaustion of the attacking troops and the considerable distance separating the enemy's successive main systems of defense, special artillery preparation was required before a successful assault could be delivered. Meanwhile, however, local operations were continued in spite of much unfavorable weather. The attack on Contalmaison and Mametz Wood was undertaken on July 7, 1916, and after three days' obstinate fighting, in the course of which the enemy delivered several powerful counterattacks, the village and the whole of the wood, except its northern border, were finally secured. On July 7 also a footing was gained in the other defenses of Ovillers, while on July 9, 1916, on our extreme right, Maltz Horn Farm—an important point on the spur north of Hardecourt—was secured.

British troops in Trones Wood.

A thousand yards north of this farm our troops had succeeded at the second attempt in establishing themselves on July 8, 1916, in the southern end of Trones Wood. The enemy's positions in the northern and eastern parts of this wood were very strong, and no less than eight powerful German counterattacks were made here during the next five days. In the course of this struggle portions of the wood changed hands several times; but we were left eventually, on July 13, 1916, in possession of the southern part of it.

Assault on the German second system of defense.

Meanwhile Mametz Wood had been entirely cleared of the enemy, and with Trones Wood also practically in our possession we were in a position to undertake an assault upon the enemy's second system of defense. Arrangements were accordingly made for an attack to be delivered at daybreak on the morning of July 14, 1916, against a front extending from Longueval to Bazentin-le-Petit Wood, both inclusive. Contalmaison Villa, on a spur 1,000 yards west of Bazentin-le-Petit Wood, had already been captured to secure the left flank of the attack, and advantage had been taken of the progress made by our infantry to move our artillery forward into new positions. The preliminary bombardment had opened on July 11, 1916. The opportunities offered by the ground for enfilading the enemy's lines were fully utilized, and did much to secure the success of our attack.

A night operation of magnitude.