Meanwhile, the 6th and 7th Dublins had landed in Salonika in October 1915 as part of a British-French force requested by the Prime Minister of Greece, with the intention of assisting Serbia who had been invaded by Bulgaria, one of Germany's allies during the Macedonian campaign. By the time the British-French force had arrived, Serbia had been defeated but the Allies remained. The Dublins took part in the Battle of Kosturino (7–8 December) and in the British withdrawal from Serbia. After Kosturino, things were mostly quiet, though the British still suffered casualties from disease, such as dysentery and malaria, and also suffered from frostbite. In October 1916 the Dublins took part in the capture of the village of Yenikoi where they suffered heavy casualties, including friendly fire from their own artillery. In August 1917 the 6th and 7th, along with the rest of the 10th (Irish), were ordered to concentrate in Salonika in preparation for moving from the Balkans. The following month the division arrived in Egypt and then commenced their participation in the Palestine campaign. The campaign was a much more successful one than the previous two campaigns that the Regiment had experienced and the Dublins took part in the Third Battle of Gaza (27 October – 7 November). The Dublins also took part in the capture of Jerusalem and in its subsequent defence from Ottoman counter-attack. The 7th Dublins left the division, moving to France in April 1918 and was attached to the 16th (Irish) on 10 June. It was, however, absorbed by 11th Royal Irish Fusiliers only 8 days later. The 6th Dublins followed the 7th the following month, also heading for France. It joined the 66th Division in July.