The plan called for the 60th brigade, supported by 24 tanks of 'A' battalion and 61st brigade, supported by 36 tanks of 'I' battalion, to advance behind a standing barrage launched at the same time as the infantry advance. This advance was to be made between the line of the Villers Plouich – Marcoing railway and a line to southeast, in a north-easterly direction astride Welsh Ridge and the valley to the south east of it. The 60th Brigade (on the left) with the 12th K.R.R.C. (left) and 6th Ox and Bucks L.I. (right) in the lead, and 61st Brigade (on the right), with the 7th D.C.L.I. (left) and 7th S.L.I. (right) in the lead, were to advance to a line some from the start line. The second objective line with the remaining battalions in the advance was around another ahead, on a line containing the whole of Welsh Ridge, whereupon the 59th Brigade and the 29th Division would pass through the 20th Division to a line north of Marcoing and Masnières over the Canal du Nord. The 12th Division was to the right and the 6th Division to the left.