▁ 1 9 1 8 , ▁General ▁Robert ▁Lee ▁Bull ard ▁took ▁command ▁of ▁the ▁Second ▁Army ▁and ▁He int zel man ▁became ▁his ▁chief - of - st aff . ▁The ▁formation ▁was ▁committed ▁to ▁the ▁Lor raine ▁off ensive ▁on ▁ 2 6 ▁October . ▁It ▁attacked ▁in ▁the ▁Lor raine ▁area , ▁and ▁also ▁around ▁Saint - M ih iel , ▁before ▁later ▁re capt uring ▁and ▁liber ating ▁the ▁Duch y ▁of ▁Luxemb urg . ▁It ▁was ▁dem obil ized ▁on ▁ 1 5 ▁April ▁ 1 9 1 9 , ▁after ▁the ▁war ▁had ▁ended . ▁ ▁Third ▁Army ▁ ▁Following ▁the ▁defeat ▁of ▁Germany , ▁Al lied ▁forces ▁occupied ▁the ▁Rh in eland ▁under ▁the ▁terms ▁of ▁the ▁Arm ist ice . ▁ ▁The ▁United ▁States ▁provided ▁around ▁ 2 4 0 , 0 0 0 ▁men ▁in ▁nine ▁veter an ▁divisions , ▁nearly ▁a ▁third ▁of ▁the ▁total ▁occup ying ▁force , ▁for ▁this ▁task . ▁These ▁troops ▁were ▁organized ▁into ▁the ▁Third ▁Army , ▁which ▁was ▁established ▁by ▁Pers hing ▁specifically ▁for ▁the ▁purpose , ▁under ▁the ▁command ▁of ▁Major ▁General ▁Joseph ▁Dick man . ▁ ▁I ▁Corps ▁▁ ▁Lieutenant ▁General ▁Hunter ▁Lig get t ▁took ▁command ▁of ▁I ▁Corps ▁when ▁it ▁was ▁created , ▁almost ▁one ▁year ▁after ▁the ▁Americans ▁entered ▁the ▁war . ▁It ▁served ▁through ▁most ▁of ▁the ▁batt les ▁that ▁the ▁American ▁Ex ped ition ary ▁Forces ▁fought ▁on ▁the ▁Western ▁Front . ▁ ▁Ass isted ▁by ▁the ▁French ▁XXX II