元げん弘こうの乱らんMeanings1expression, nounGenkō War; Genkō Incidenthistorical termHistorical term referring to the 1331–1333 conflict that led to the fall of the Kamakura shogunate. Often encountered in Japanese history contexts.元げん弘こうの乱らんは鎌かま倉くら幕ばく府ふ滅めつ亡ぼうのきっかけとなった。The Genkō War triggered the fall of the Kamakura shogunate.