▁Indones ia ▁consisting ▁of ▁a ▁Dutch - supported ▁State ▁of ▁East ▁Sum ara ▁( ). ▁The ▁threat ▁felt ▁by ▁the ▁Chinese ▁also ▁motiv ated ▁them ▁to ▁co - oper ate ▁with ▁the ▁Mal ay ▁arist ocr ats , ▁most ▁of ▁the ▁S imal ung un ▁ra jas , ▁some ▁Kar o ▁ch ie ft ains ▁and ▁the ▁Dutch ▁in ▁creating ▁the ▁N ST . ▁Dr ▁T eng ku ▁Mans ur ▁( a ▁member ▁of ▁the ▁As ah an ▁royal ▁family ) ▁was ▁selected ▁as ▁head ▁of ▁state ▁and ▁the ▁N ST ▁last ed ▁from ▁December ▁ 1 9 4 7 ▁to ▁August ▁ 1 9 5 0 . ▁While ▁the ▁Dutch ▁wanted ▁the ▁N ST ▁to ▁be ▁seen ▁as ▁an ▁order ly ▁and ▁progress ive ▁alternative ▁to ▁the ▁republic , ▁the ▁western - ed uc ated ▁arist ocr ats ▁saw ▁N ST ▁as ▁a ▁bast ion ▁for ▁their ▁own ▁eth nic ▁interests . ▁The ▁N ST ▁began ▁to ▁dis integr ate ▁as ▁soon ▁as ▁Dutch ▁military ▁support ▁was ▁with dra wn . ▁The ▁short - l ived ▁state ▁was ▁viewed ▁with ▁susp icion , ▁and ▁Dr ▁T eng ku ▁Mans ur ▁eventually ▁surrender ed ▁authority ▁to ▁the ▁republic ▁in ▁August ▁ 1 9 5 0 . ▁Con sequently , ▁East ▁Sum atra ▁was ▁merged ▁into ▁a ▁larger ▁province ▁of ▁North ▁Sum atra , ▁where ▁it ▁has ▁remained ▁till ▁today . ▁ ▁See ▁also ▁Indones ian ▁National ▁Revolution ▁History ▁of ▁Indones ia ▁ ▁Notes ▁ ▁References ▁ ▁Category : Ind ones ian ▁National ▁Revolution