 Ibiganiro hagati yivyo bihugu bibiri vyarahagaze inyuma yumubonano wabereye mu gihugu ca Vietnam ku kwezi kwa kabiri kwuno mwaka wa 2019, wagiye kurangira ata masezerano bashitseko ku vyerekeye umugambi wigihugu ca Koreya yUburaruko werekeye ibirwanisho vyubumara. 