周世宗
After the death of Guo Wei in 954, his adopted son Chai Rong succeeded the throne and began a policy of expansion and reunification. One month after Chai Rong took the throne, Liu Chong, Emperor of Northern Han, colluded with Liao Dynasty to launch an assault on Later Zhou. Against the advice of Minister Feng Dao, Chai Rong decided to lead his army against the incursion. When Chai Rong engaged Liu Chong at Gao Ping (in modern Jincheng), two of Chai's generals, Fan Aineng and He Hui, fled from the battlefield along with their troops. At this critical moment, Chai Rong risked his life to break through the defense and crushed Liu’s forces. After this campaign, Chai Rong consolidated his power. Between 956 and 958, forces of Later Zhou conquered much of Southern Tang, the most powerful regime in southern China, which ceded all the territory north of the Yangtze in defeat. In 959, Chai Rong attacked the Liao in an attempt to recover territories ceded during the Later Jin. After many victories, he succumbed to illness.