▁similar ▁ide ology ▁of ▁national ism . ▁Un like ▁those ▁mentioned ▁earlier , ▁this ▁group ▁of ▁leaders ▁were ▁act ively ▁involved ▁with ▁national ist ▁movements ▁before ▁the ▁Pacific ▁War . ▁Most ▁of ▁them ▁used ▁to ▁collabor ate ▁with ▁the ▁Japanese ▁occup iers ▁as ▁administrative ▁personnel ▁and ▁they ▁were ▁motiv ated ▁to ▁join ▁this ▁revolution ▁so ▁as ▁to ▁promote ▁the ▁political ▁ide ology ▁of ▁national ism ▁as ▁well ▁as ▁to ▁continue ▁their ▁leadership ▁during ▁the ▁post - war ▁period . ▁ ▁Second ly , ▁loc als ▁who ▁rose ▁to ▁prom in ence ▁after ▁under going ▁military ▁training ▁in ▁Japanese ▁military ▁organis ations ▁during ▁the ▁period ▁of ▁Japanese ▁occupation ▁were ▁also ▁responsible ▁for ▁the ▁revolution . ▁These ▁" people ’ s ▁volunte er ▁arm ies " ▁were ▁equ ipped ▁with ▁rich ▁military ▁experiences ▁and ▁that ▁has ▁im bu ed ▁them ▁with ▁a ▁deeper ▁commit ment ▁to ▁radical ▁national ism . ▁Event ually , ▁some ▁of ▁them ▁became ▁milit ia ▁leaders ▁in ▁the ▁earlier ▁phase ▁of ▁the ▁social ▁revolution . ▁Many ▁sch ol ars ▁including ▁Anthony ▁Re id ▁and ▁Moh amm ad ▁Sa id ▁have ▁highlight ed ▁the ▁importance ▁of ▁these ▁people ▁in ▁initi ating ▁and ▁executing ▁the ▁ 1 9 4 6 ▁social ▁revolution ▁in ▁East ▁Sum atra . ▁ ▁Third ly , ▁Muslim ▁reform ist ▁forces ▁were ▁involved ▁in ▁Islam ic ▁movements ▁to ▁resist ▁against ▁the ▁ker aja an ▁and ▁Mal ay ▁arist ocr ats . ▁Supp or ters ▁of ▁the ▁Islam ic ▁movements ▁had ▁faced ▁opp ression ▁by ▁the ▁s ult ans ▁who