But, however excellent in itself, the Mounted Division was not numerous enough to give stability to the Suvla Divisions, most of which were still fatigued and disheartened by the ill success of their first attempts at warfare.[202] In the hope of affording the much-needed stiffening to the IXth Corps, Major-General De Lisle, accordingly, was instructed to bring the three brigades of his own 29th Division round from Helles by night, and land them at Suvla for the attack. They were under the command of their next senior officer, Major-General W. R. Marshall of the 87th Brigade. De Lisle himself, being in temporary command of the IXth Corps, directed the whole action. His scheme was very simple. On his right, the 11th Division was to assault the trenches which the Turks had now dug across the Biyuk Anafarta valley or plain, south and a little east of Chocolate and Green Hills, and so to protect the right flank until the moment came for a general attack upon W Hill, the ultimate objective of the whole movement. On his centre, the 29th Division was to storm Scimitar Hill, the possession of which, as before explained, was essential to any advance against W Hill itself. To his left, the long line from Sulajik Farm across the wooded plain up to the summit of Kiretch Tepe was held by the two Territorial Divisions, the 53rd and 54th, so as to check any attempt to turn the flank on that side by getting behind our attacking force. Chocolate Hill, 1000 yards from the summit of Scimitar Hill, was the centre of our advance, and on the night of August 20–21 the 29th Division entered the trenches close to the left of that hill, the 11th Division stretching down the slope and into the plain on the right.