 The regiment arrived at camp de Pertus on the 19, and with the 2nd Marching Regiment of the 1st Foreign Regiment (), both Marching Regiments formed a brigade which was placed at the corps of the 5th Army of général Louis Félix Marie François Franchet d'Espèrey.On October 21, the regiment and the brigade were at Verzy, south of Reims.Until October 26, the regiment's battalions relayed each other in the first line trenches within the sectors of Prunay, Sillery, and prepositions of Verzenay in the south-east of Reims.