Çataldere Şehitliği in the Çataldere valley, lies to the east of the main front, part of the Ariburnu defences held by the Turkish 19th Division in May 1915 when the Turks counter-attacked. Although occupied continuously from 25th April until December, ditches were first created on May 24 during a ceasefire to mass bury the dead. Casualties were from 1st, 5th, 6th, 27th and 57th Regiments. The total number of names on this memorial is 2,835. The final list of names to the five regiments was added in 2006. In this area are the tombs of Lieutenant-Colonels Monastir and Anvi.