Upon Wangtai's death (1582), a succession struggle ensued, sapping Hada of its strength and allowing the Yehe Nara and later Nurhaci to eclipse its power. In 1599, Narimbulu of Yehe invaded Hada. Weakened, Menggebulu (beile of Hada) requests aid from Nurhaci. Nurhaci sent two thousand troops led by Fiongdon (費英東) and Gagai (噶蓋). Fearing the rise of the Jianzhou Jurchens, Narimbulu in turn offered to ally with Menggebulu to defeat Nurhaci. Menggebulu accepted the offer, but the plot was leaked and Nurhaci attacked Hada instead.