李昪
In 940 the Southern Tang supported backed a rebellion in the Later Jin territory Anyuan. Li Bian broke his policy of maintaining peaceable relations with neighboring states in a campaign that ultimately ended in Southern Tang failure. The military commissioner of Anyuan, Li Jinquan, contacted the Southern Tang with an offer to change allegiance from the Later Jin to the Southern Tang realm. Li Bian accepted the offer and sent an army northwards.