Nka Korea ya Ruguru ibandanya iteza imbere igisata ca "nucléaire" kuva mu 2017, harimwo n'ukugerageza ikigwanisho co mu bwoko bwa "thermonucléaire" hamwe n'ubwoko bubiri bushasha bwa "missiles ballistiques" zigera kure cane, ni ibivugwa mw'ico cigwa.
