In early August, the Allies attempted to break out from the beach, launching an offensive around Anzac Cove in the centre of the Allied position, as well as Suvla Bay to the north, and Cape Helles to the south; the 10th Battalion played a support role during the offensive, providing reinforcement parties and machine-gun crews to support the 1st Brigade during the Battle of Lone Pine. The offensive was a costly failure and afterwards stalemate returned to the battlefield. As winter approached, conditions on the peninsula grew harsher and a large number of personnel had to be evacuated sick as a wave of dysentery swept through the battalion. In September, the 2nd Division arrived to reinforce the forces at Anzac. In mid-November, as the Allied commanders debated the future of the campaign, the 3rd Brigade received orders to pull back from the frontline, so that it could be withdrawn to Lemnos for rest. On 16 November, the 10th Battalion took up reserve positions on the beach, before embarking on the transport . It landed at Mudros, and spent the rest of November and December there. Meanwhile, the main Allied force was evacuated from the peninsula, with the last Australian troops withdrawing on 20 December. On Boxing Day 1915, the 10th Battalion sailed for Egypt, arriving in Alexandria on 29 December. Losses on Gallipoli had been heavy – 711 casualties were reported in the battalion between April and September 1915 – and the AIF underwent a period of reorganisation as it was expanded in preparation for its deployment to the European battlefield. As a part of this process, the 10th Battalion provided a cadre of experienced personnel to the newly raised 50th Battalion, which was assigned to the 13th Brigade, 4th Division, and was brought up to strength with fresh recruits from Australia.