The enemy's defenses in this area were already extremely formidable when they resisted our assault on July 1, 1916, and the succeeding period of four months had been spent in improving and adding to them in the light of the experience he had gained in the course of our attacks further south. The hamlet of St. Pierre Divion and the villages of Beaucourt-sur-Ancre and Beaumont Hamel, like the rest of the villages forming part of the enemy's original front in this district, were evidently intended by him to form a permanent line of fortifications, while he developed his offensive elsewhere. Realizing that his position in them had become a dangerous one, the enemy had multiplied the number of his guns covering this part of his line, and at the end of October introduced an additional division on his front between Grandcourt and Hebuterne. [Sidenote: Barrage to cover infantry.] At 5 o'clock on the morning of November 11, 1916, the special bombardment preliminary to the attack was commenced. It continued with bursts of great intensity until 5.45 o'clock on the morning of November 13, 1916, when it developed into a very effective barrage covering the assaulting infantry. [Sidenote: St. Pierre Divion taken.] At that hour our troops advanced on the enemy's position through dense fog, and rapidly entered his first-line trenches on almost the whole front attacked, from east of Schwaben Redoubt to the north of Serre. South of the Ancre, where our assault was directed northward against the enemy's trenches on the northern slopes of the Thiepval Ridge, it met with a success altogether remarkable for rapidity of execution and lightness of cost. By 7.20 a.m. our objectives east of St. Pierre Divion had been captured, and the Germans in and about that hamlet were hemmed in between our troops and the river. Many of the enemy were driven into their dugouts and surrendered, and at 9 a.m. the number of prisoners was actually greater than the attacking force. St. Pierre Divion soon fell, and in this area nearly 1,400 prisoners were taken by a single division at the expense of less than 600 casualties. The rest of our forces operating south of the Ancre attained their objectives with equal completeness and success. [Sidenote: Objectives reached on right bank of Ancre.]