' s ▁national ▁boundaries , ▁to ▁avoid ▁ ▁disput es ▁with ▁neighbor ing ▁countries . ▁B ound aries ▁and ▁challeng es ▁of ▁Indones ia ▁are : ▁▁ ▁Tre at ise ▁of ▁the ▁B P UP K I ▁session ▁on ▁May ▁ 2 9 - J une ▁ 1 , ▁ 1 9 4 5 ▁discussed ▁about ▁the ▁territory ▁of ▁the ▁future ▁Republic ▁of ▁Indones ia ▁and ▁mentioned ▁several ▁opinions ▁of ▁found ing ▁f athers . ▁Dr . ▁So ep omo ▁said ▁Indones ia ▁included ▁the ▁boundary ▁of ▁the ▁former ▁Dutch ▁East ▁Ind ies . ▁Moh . ▁Y amin ▁said ▁that ▁Indones ia ▁includes ▁Sum atra , ▁Java , ▁L esser ▁S unda ▁Islands , ▁Bor neo , ▁C ele bes , ▁Mal u ku , ▁Mal ay ▁Pen ins ula , ▁Tim or , ▁and ▁West ▁New ▁Guinea . ▁So ek ar no ▁stated ▁that ▁the ▁Indones ian ▁arch ip el ago ▁is ▁an ▁in separ able ▁unit . ▁ ▁Or don ant ie ▁( D utch ▁Law ) ▁ 1 9 3 9 , ▁mentioned ▁about ▁the ▁determ ination ▁of ▁the ▁territorial ▁sea ▁which ▁was ▁along ▁the ▁ 3 ▁na ut ical ▁miles ▁width ▁by ▁drawing ▁along ▁a ▁base ▁line ▁based ▁on ▁the ▁tid al ▁or ▁island / land ▁cont our . ▁This ▁provision ▁makes ▁Indones ia ▁not ▁a ▁unit ary ▁state , ▁because ▁in ▁many ▁parts ▁of ▁the ▁sea ▁between ▁Indones ian ▁islands ▁( e . g . ▁Java ▁Sea ▁and ▁Band a ▁Sea ) ▁there ▁are ▁some ▁international ▁waters ▁that