the offensive french second army forced falkenhayn divert xxi , bavarian corps arrived, extend front northwards chaulnes péronne on 24 september , drive french on somme. overcrowded , damaged railways behind german front slowed transit of german forces , infantry marched namur , cambrai. on 25 september, german reinforcements attacked, crossed somme south of péronne , advanced take bridge between hem , feuillères. french attack north of somme against ii bavarian corps, forced hurried withdrawal. more bavarian units arrived in north, 3rd bavarian division advanced north of somme through bouchavesnes, leforest , hardecourt until held @ maricourt. 4th bavarian division further north, defeated french territorials , attacked westwards towards albert, through sailly, combles, guillemont , montauban. on 27 september, ii cavalry corps drove 61st , 62nd reserve divisions (general joseph brugère, d amade had been replaced), make way xiv reserve corps link right flank of ii bavarian corps, ready ...