▁mass ed ▁eight ▁corps ▁on ▁the ▁left ▁wing , ▁which ▁with ▁for tr ess ▁g arr isons ▁and ▁ ▁troops , ▁changed ▁the ▁ratio ▁of ▁forces ▁between ▁the ▁left ▁and ▁right ▁wings ▁from ▁ ▁Mol t ke ▁added ▁forces ▁to ▁the ▁left ▁wing ▁after ▁con cluding ▁that ▁a ▁French ▁off ensive ▁into ▁Als ace ▁and ▁Lor raine , ▁particularly ▁from ▁B elf ort , ▁had ▁become ▁certain . ▁The ▁ 7 th ▁Army ▁was ▁to ▁defeat ▁an ▁off ensive ▁in ▁Als ace ▁and ▁co - oper ate ▁with ▁the ▁ 6 th ▁Army ▁to ▁defeat ▁an ▁off ensive ▁in ▁Lor raine . ▁After ▁ 1 9 1 0 , ▁the ▁ 7 th ▁Army ▁was ▁to ▁attack ▁with ▁the ▁ 6 th ▁Army ▁towards ▁the ▁Mos elle ▁below ▁Fr ou ard ▁and ▁the ▁Me ur the ; ▁provision ▁was ▁also ▁made ▁for ▁the ▁movement ▁of ▁troops ▁to ▁the ▁right ▁wing ▁of ▁the ▁German ▁arm ies ▁by ▁res erving ▁trains ▁and ▁w ag ons ▁in ▁the ▁region . ▁ ▁The ▁deployment ▁plan ▁for ▁the ▁western ▁arm ies ▁( ), ▁allocated ▁to ▁the ▁ 7 th ▁Army ▁( ▁Jos ias ▁von ▁He ering en ) ▁the ▁XIV ▁and ▁XV ▁corps , ▁the ▁XIV ▁Reserve ▁Corps ▁and ▁the ▁ 6 0 th ▁ ▁Brigade , ▁to ▁deploy ▁from ▁Str as bourg ▁to ▁Mul house ▁and ▁Fre ib urg ▁im ▁Bre is g au ▁and ▁the ▁command ▁of ▁for tr esses ▁at ▁Str as bourg ▁and ▁Ne uf - B ris ach . ▁The ▁ 1 st