This attack of the 62d (West Riding) Division constitutes a brilliant achievement, in which the troops concerned completed an advance of four and a half miles from their original front, overrunning two German systems of defense and gaining possession of three villages. On the left flank of our attack Ulster battalions pushed northward along the Hindenburg line and its forward defenses, maintaining touch with the West Riding troops, and carried the whole of the German trench systems west of the Canal du Nord as far north as the Bapaume-Cambrai road. At the end of the first day of the attack, therefore, three German systems of defense had been broken through to a depth of some four and a half miles on a wide front, and over 5,000 prisoners had already been brought in. But for the wrecking of the bridge at Masnières and the check at Flesquières still greater results might have been attained. Throughout these operations the value of the services rendered by the tanks was very great, and the utmost gallantry, enterprise, and resolution were displayed by both officers and crews. In combination with the other arms, they helped to make possible a remarkable success. Without their aid in opening a way through the German wire, success could only have been attained by methods which would have given the enemy ample warning of our attack and have allowed him time to mass troops to oppose it. As has been pointed out above, to enable me to undertake such an operation with the troops at my disposal secrecy to the last moment was essential. The tanks alone made it possible to dispense with artillery preparation, and so to conceal our intentions from the enemy up to the actual moment of attack. Great credit is due also to the Royal Flying Corps for very gallant and most valuable work carried out under conditions of the greatest difficulty from low clouds and driving mist. In the subsidiary attack at Bullecourt battalions of the 3d Division and the 16th (Irish) Division successfully completed the work begun by our operations in this area in May and June, 1917, capturing the remainder of the Hindenburg support trench on their front, with some 700 prisoners. A number of counterattacks against our new positions at Bullecourt on this and the following day were repulsed, with great loss to the enemy. The Advance Continued 4. On the morning of Nov. 21 the attack on Flesquières was resumed, and by 8 A. M. the village had been turned from the northwest and captured. The obstacle which more than anything else had limited the results of Nov. 20 was thereby removed, and later in the morning the advance once more became general.