exp lic able , ▁considering ▁the ▁success ▁of ▁his ▁assault ▁column . ▁B rag g ▁knew , ▁however , ▁that ▁his ▁success ▁on ▁the ▁southern ▁end ▁of ▁the ▁battle field ▁was ▁merely ▁driving ▁his ▁oppon ents ▁to ▁their ▁escape ▁route ▁to ▁Ch att ano oga ▁and ▁that ▁the ▁opportunity ▁to ▁destroy ▁the ▁Army ▁of ▁the ▁C umber land ▁had ▁ev apor ated . ▁After ▁the ▁repeated ▁del ays ▁in ▁the ▁morning ' s ▁attacks , ▁B rag g ▁had ▁lost ▁confidence ▁in ▁his ▁gener als ▁on ▁the ▁right ▁wing , ▁and ▁while ▁den ying ▁Long street ▁rein for c ements ▁told ▁him ▁" There ▁is ▁not ▁a ▁man ▁in ▁the ▁right ▁wing ▁who ▁has ▁any ▁fight ▁in ▁him ." ▁ ▁Long street ▁finally ▁deployed ▁Pr eston ' s ▁division , ▁which ▁made ▁several ▁attempts ▁to ▁assault ▁H ors es ho e ▁R idge , ▁starting ▁around ▁ 4 : 3 0   p . m . ▁Long street ▁later ▁wrote ▁that ▁there ▁were ▁ 2 5 ▁assault s ▁in ▁all ▁on ▁Sn od gr ass ▁Hill , ▁but ▁historian ▁Gl enn ▁T ucker ▁has ▁written ▁that ▁it ▁was ▁" re ally ▁one ▁of ▁sust ained ▁duration ." ▁At ▁that ▁same ▁time ▁Thomas ▁received ▁an ▁order ▁from ▁Rose cr ans ▁to ▁take ▁command ▁of ▁the ▁army ▁and ▁began ▁a ▁general ▁retre at . ▁Thomas ' s ▁divisions ▁at ▁Kelly ▁field , ▁starting ▁with ▁Reyn olds ' s ▁division , ▁were ▁the ▁first ▁to ▁withdraw , ▁followed ▁by ▁Pal mer ' s . ▁As ▁the