Elsewhere, the Gallipoli campaign had developed into a stalemate. The regiments of the 1st, 2nd and 3rd Light Horse Brigades had already been sent to the peninsula as reinforcements; however, the failed August Offensive had resulted in heavy casualties for the Australians and further reinforcements were required. As a result, the regiments of the 4th Light Horse Brigade were broken up to make up the losses in the other brigades. The troops were not initially informed of this, and following a train trip to Alexandria on 25 August they embarked upon the transport SS "Marquette" and sailed to Lemnos Island where they were transferred to "Prince Abbas". Early on the morning of 29 August, the regiment went ashore at Anzac Cove upon lighters, and later that afternoon received the news that they were to be broken up and distributed among the other New South Wales light horse regiments that were already ashore. The Machine-Gun Section and 'A' Squadron were sent to the 1st Light Horse Regiment around "Walker's Ridge", becoming that regiment's 'B' Squadron; 'B' Squadron went to the 7th Light Horse Regiment at "Ryrie's Post", adopting the designation of 'D' Squadron; and 'C' Squadron went to the 6th Light Horse Regiment around "Holly Spur" and "Lone Pine", becoming their 'D' Squadron. The Regimental Headquarters was absorbed by the 3rd Light Horse Brigade's headquarters, while Abbott took command of the 10th Light Horse Regiment.