▁lost ▁control ▁of ▁the ▁provinces ▁north ▁of ▁the ▁H indu ▁K ush . ▁ ▁Two ▁other ▁members ▁of ▁the ▁dynast y ▁were ▁Pl ato ▁of ▁B act ria ▁and ▁probably ▁Dem et ri us ▁II , ▁who ▁in ▁that ▁case ▁was ▁not ▁identical ▁with ▁the ▁king ▁Justin ▁claimed ▁was ▁the ▁enemy ▁of ▁E uc rat ides ▁I . ▁ ▁The ▁rule ▁of ▁the ▁Gre co - B act ri ans ▁soon ▁cr umbled ▁following ▁these ▁numerous ▁wars : ▁ ▁" The ▁B act ri ans , ▁involved ▁in ▁various ▁wars , ▁lost ▁not ▁only ▁their ▁rule ▁but ▁also ▁their ▁freedom , ▁as , ▁exha usted ▁by ▁their ▁wars ▁against ▁the ▁S og d ians , ▁the ▁A rach otes , ▁the ▁Dr anges , ▁the ▁Ari ans ▁and ▁the ▁Indians , ▁they ▁were ▁finally ▁cr ushed , ▁as ▁if ▁drawn ▁of ▁all ▁their ▁blood , ▁by ▁an ▁enemy ▁we aker ▁than ▁them , ▁the ▁Par th ians ." ▁Justin , ▁X LI , 6 ▁ ▁However , ▁the ▁rule ▁of ▁the ▁Ind o - G ree ks ▁over ▁territ ories ▁south ▁of ▁the ▁H indu ▁K ush ▁last ed ▁for ▁a ▁further ▁ 1 5 0 ▁years , ▁ultimately ▁col laps ing ▁under ▁the ▁pressure ▁of ▁the ▁Y ü eh - chi h ▁and ▁S cy th ian ▁( S aka ) ▁invas ions ▁in ▁around ▁ 1 0 ▁BC , ▁with ▁the ▁last ▁Ind o - G reek ▁r uler ▁Str ato ▁II . ▁ ▁S ources ▁Full ▁account ▁of ▁Justin ▁on