The New Zealand Infantry Brigade came within of the near peak of Chunuk Bair by dawn on 7 August but was not able to seize the summit until the following morning. On the morning of 7 August, the Australian 3rd Light Horse Brigade attacked on a narrow front at the Nek, to coincide with the New Zealand attack from Chunuk Bair against the rear of the Ottoman defences. The opening artillery barrage lifted seven minutes too soon, which alerted the Ottomans and the attack was a costly failure. An attack on never took place after the Australian 4th Infantry Brigade and an Indian brigade lost direction during the night. Attempts to resume the attack were easily repulsed by the Ottoman defenders, at great cost to the Allies. The New Zealanders held out on Chunuk Bair for two days before being relieved by two New Army battalions from the Wiltshire and Loyal North Lancashire Regiments but an Ottoman counterattack on 10 August, led by Mustafa Kemal, swept them from the heights. Of in the New Zealand Wellington Battalion who reached the summit, casualties. With the Ottoman recapture of the ground, the Allies' best chance of victory was lost.