 As the Canadian Corps position was directly south of the boundary between British Fifth and Second armies, the Fifth Army would mount subsidiary operations on the left flank of the Canadian Corps, while the I Anzac Corps would advance to protect the right flank and X Corps attack Gheluvelt to improve the local tactical position and as a diversion from the main attack in the north.The Canadian Corps commander, Lieutenant-General Arthur Currie, submitted his provisional operational plan on 16 October and recommended the attack not be executed until 29 October, to move sufficient artillery forward.Haig was anxious to avoid delay, particularly given that he wished to assist the French attack on Malmaison, which was due to start on 23 October.