A mobile force was organized consisting of the First and Second Canadian Motor Machine-Gun Brigades, the Canadian Corps Cyclist Battalion, and a section of 6-in. Newton Mortars mounted on motor lorries. This force was named the Canadian Independent Force, placed under the command of Brigadier General R. Brutinel, and given the task of cooperating with the cavalry in the neighborhood of the Amiens-Roye road, covering the right flank of the right division and maintaining liaison with the French. Two British divisions were held in army reserve, and were available in the event of certain situations developing. The total artillery amounted to seventeen brigades of field artillery and nine brigades of heavy artillery, plus four additional batteries of long-range guns. At 10.00 a. m. on the morning of August 5, 1918, General Sir A. W. Currie took over command of the battle front, then held by the Fourth Australian Division. During the hours of darkness on the 4th, 5th, 6th, and 7th the attacking Canadian troops relieved the Australian troops, with the exception of those holding the outpost line, who remained in position until the night of August 7-8, 1918. The dispositions of the Canadian Corps on the morning of the 8th at zero hour were as follows: On the right, the Third Canadian Division, in liaison with the French; in the center, the First Canadian Division; on the left, the Second Canadian Division, in liaison with the Australians; in reserve, behind the Third Canadian Division, the Fourth Canadian Division. Each of these divisions had their allotment of tanks. East of the Noye River, the Third Cavalry Division. Behind Gentelle Wood, the Canadian Independent Force. At 4.20 a. m., August 8, 1918, the initial assault was delivered on the entire army front of attack, and the First French Army opened their bombardment. The attack made satisfactory progress from the outset on the whole front. East of Hourges, opposite the Third Canadian Division, the high ground which dominated the Canadian front and a portion of the French front had been seized quickly by the Ninth Canadian Infantry Brigade (Brigadier General D. M. Ormond), and the way was opened for the Canadian Independent Force and the Fourth Canadian Division. By the afternoon the Canadian Corps had gained all its objectives, with the exception of a few hundred yards on the right in the vicinity of Le Quesnel, where stiff resistance was offered by unexpected reserves, but this was made good the following morning. The day's operations in which the four Canadian divisions took part represented a maximum penetration of the enemy's defenses of over eight miles, and included the capture of the following villages: Hangard, Demuin, Beaucourt, Aubercourt, Courcelles, Ignaucourt, Cayeux, Caix, Marcelcave, Wiencourt, l'Equipée, and Guillaucourt. In addition to these, the Canadian Independent Forces assisted the French in the capture of Mezières, which was holding up their advance.