 On June 20, the remainder of the regiment to the turn joined the 1st Armed Corps and relieved the 284th French Infantry Regiment in the sector of Merfy - Saint Thierry.With the 6th Cavalry Chasseurs Regiment, the 2nd Marching Regiment constituted the Guérin group.On July 11, following the departure of 334 Russians and 394 Belgians, one of the battalion's regiment was subsequently dissolved.