▁Indones ia ▁after ▁the ▁Ay ut th aya ▁Kingdom ▁was ▁attacked ▁by ▁the ▁Bur m ese . ▁Sil at ▁shares ▁many ▁similar ities ▁with ▁Ok ina wan ▁kar ate ▁as ▁well ▁as ▁the ▁throws ▁and ▁st ances ▁of ▁weapon - based ▁Japanese ▁mart ial ▁arts ▁which ▁probably ▁date ▁back ▁to ▁this ▁time . ▁Trade ▁with ▁Japan ▁ended ▁when ▁the ▁country ▁went ▁into ▁self - im posed ▁isol ation ▁but ▁res umed ▁during ▁the ▁Me iji ▁era , ▁during ▁which ▁time ▁certain ▁areas ▁of ▁Malays ia , ▁Indones ia ▁and ▁Singapore ▁became ▁home ▁to ▁a ▁small ▁Japanese ▁population . ▁After ▁the ▁Japanese ▁Occ up ation , ▁some ▁sil at ▁master s ▁incorpor ated ▁the ▁kat ana ▁into ▁their ▁systems . ▁ ▁As ▁India ▁came ▁under ▁the ▁rule ▁of ▁conquer ors ▁from ▁Central ▁Asia ▁and ▁the ▁Middle ▁East , ▁the ▁Indian ▁trad ers ▁who ▁frequ ented ▁S out heast ▁Asia ▁introduced ▁kn ives ▁of ▁Arab ian ▁origin ▁to ▁the ▁western ▁coast ▁of ▁the ▁Indones ian ▁Arch ip el ago . ▁Indian - Mus lim ▁bl ades ▁brought ▁a ▁Mo or ish ▁influence ▁to ▁the ▁shape ▁of ▁a ▁few ▁local ▁kn ives , ▁most ▁strongly ▁seen ▁in ▁A ce h . ▁These ▁weapons , ▁sometimes ▁err one ously ▁called ▁" Mus lim ▁weapon ry ", ▁spread ▁into ▁Sul aw esi ▁and ▁West ▁Malays ia ▁by ▁the ▁ 1 9 th ▁century . ▁The ▁only ▁notable ▁examples ▁of ▁such ▁bl ades ▁are ▁the ▁j amb ia ▁and ▁the ▁kar is , ▁the ▁latter ▁being ▁a ▁short ▁A