Gyeon Hwon
Gyeon Hwon sent another major expedition to Hapcheon in 920 and finally succeeded in taking over the region, forcing King Gyeongmyeong into an alliance with Goryeo. Then he invaded the present-day Andong area, but his troops were defeated by local Silla guards. Gyeon Hwon was forced to make peace with Goryeo after the battle, through a hostage exchange of royal family members. However, when his nephew Jin Ho died, he killed the Goryeo hostage Wang Shin, cousin of Wang Geon, and resumed war against Goryeo.