Nyora kupfuurira kweiyi ndima - Pakazosvika 20 Nyamavhuvhu, Fifth Army yakanga yatanga kuunganidza pamberi pebhiri reSambre, rakakomberedzwa neCharleroi uye richipararira kumabvazuva kusvika kunhare yeBelgian yeNamur. Parutivi rworuboshwe, Sordet Cavalry Corps yakabatanidza Fifth Army kuBritish Expeditionary Force (BEF) paMons. General Joseph Joffre akarayira Lanrezac kurwisa mhiri kweSambre asi kurwisa uku kwakadziviswa neGerman 2nd Army mangwanani eAugust 21, iyo yakayambuka Sambre, ichigadzira mabhiriji maviri ayo maFrance, asina zvombo, aisakwanisa kuderedza. Bülow akarwisa zvakare musi wa22 Nyamavhuvhu aine mauto matatu achipesana neFifth Army yese. Kurwisana kwakaenderera mberi musi wa 23 Nyamavhuvhu, apo nzvimbo yeFrance yakapoteredza Charleroi yakatanga kudzokera shure. Mauto e3 eGermany akayambuka Meuse ndokutanga kurwisa divi rerudyi reFrance, raichengetwa neI Corps (General Louis Franchet d'Esperey). VaFrench vakamisa kufambira mberi kweGermany ndokurwisa. Hondo yeChishanu yakatarisana nehondo yechitatu yeGermany uye yechipiri kubva kumabvazuva nekuchamhembe. Hondo yeChishanu isati yarwisa mhiri kweSambre Hondo yeChipiri yakarwisa paHondo yeCharleroi
uye paNamur musi wa21 August. Mauto e3 akayambuka Meuse ndokurwisa divi rokurudyi reFrance uye musi wa 23 Nyamavhuvhu, Mauto e5 akatanga kudzokera kumaodzanyemba kuti arege kukombwa.