By nightfall the ANZACs had suffered 2,000 casualties and were fighting to remain on the beach. For the following two weeks the Allies failed to advance and lost one third of their force. Because he had successfully held off the Allied forces at Conkbayırı (Chunuk Bair), Mustafa Kemal was promoted to the rank of Colonel during the early stages of the land campaign. The second stage of the Gallipoli campaign, which began on 6 August, placed Mustafa Kemal only three hundred meters (approximately 330 yards) away from the firing line. He was also the Turkish commander assigned to many of the major battles throughout the Gallipoli campaign, such as the Battle of Chunuk Bair, Battle of Scimitar Hill and the Battle of Sari Bair.