 On November 26, Chef de bataillon Mauvilain's battalion ( 14 Officers and 1053 men ), left the depot of Orléans and joined the region of Reims at Baslieux-lès-Fismes where the battalion garrisoned for a couple days.Subsequently, on December 15, Mauvilain's battalion to the turn, made way to the first line at the front.On May 22, 1915, the regiment was relieved from the front by the 34th Infantry Regiment and was retrieved from the 18th Armed Corps; the regiment counted 72 Officers and 3818 men.