Kammala jumla mai zuwa: Dawn ya ɓace a ranar 21 ga watan Agusta kuma babu wani bincike na iska har sai da rana. BEF ya fara ci gaba zuwa arewa daga Maubeuge zuwa Mons, duk da rahotannin daga jirgin sama cewa wani rukunin sojojin Jamus "ya shimfiɗa ta Louvain har zuwa ido ya gani". A Maubeuge, labarai sun isa faduwar yawancin Matsayin Namur mai ƙarfi a Belgium da kuma allon da aka sanya a bangon garin da ke ba da umarnin shirye-shiryen kewaye ya fara ƙaura na fararen hula 25,000. Jirgin saman Biritaniya ya isa ranar 22 ga Agusta kuma wucewar rundunar Scotland ta tayar da hankalin fararen hula a takaice, sai dai rahotannin da ke cewa sojojin Jamus sun tsallaka kogin Sambre a Charleroi. Daga ranar 17 ga watan Agusta, Maubeuge ya kasance a ƙarƙashin jagorancin Janar Charles Lanrezac, kwamandan rundunar soja ta biyar kuma a
Yaƙin Charleroi (21 zuwa 23 ga Agusta) an ci Sojoji na Biyar da BEF kuma an tilasta su ja da baya. Umarnin minista na 1910 ya yi la'akari da cewa Maubeuge na iya tsayawa a takaice yayin da yake rufe taro na rundunonin filin, ba warewa mara iyaka ba bayan da sojojin filin suka janye. Lanrezac ya yi la'akari da kara da regiments na yau da kullum da kuma ajiya zuwa Fifth Army amma ya ƙi ra'ayin. Garrison na Maubeuge ya yanke layin dogo kuma masu aikin injiniya sun busa gadar jirgin kasa a Jeumont, Berliaumont da Fourmies zuwa kan iyakar Belgium.