Yancheng is a fortified position in Guan Yu’s defensive network, held by Guan Ping during Cao Cao’s advance on Fancheng. Xu Huang captures it through a feint that draws Guan Ping away from his post; its loss destabilizes the neighboring defenses, and Guan Ping and Liao Hua eventually have to escape back to Guan Yu.

Position in the Defense

Guan Ping was stationed at Yancheng, while Liao Hua held Sizhong. Twelve forts lay between their positions, allowing the two commanders to communicate. The arrangement linked the camps into a defensive system, but it also meant that pressure on one position could threaten the others.

Xu Huang exploited that connection with a false display of allegiance. His troops advanced under his colours, encouraging Guan Ping to believe they were on his side, while Xu Huang himself approached Yancheng from another direction with five hundred picked soldiers. The stratagem lured Guan Ping out and left the position vulnerable.

Capture and Collapse

Once Guan Ping had been drawn into the trap, flames appeared at Yancheng. Xu Huang confronted him and announced that Jingzhou had also fallen to Wu. Guan Ping recognized the immediate danger to his base and fought his way toward Sizhong rather than remain at Yancheng.

At Sizhong, Guan Ping rejected the report of Jingzhou’s fall as a lie and ordered that anyone repeating it be executed. But news then arrived that Xu Huang was attacking the northern camp. Guan Ping judged that its loss would endanger the other forts, and, believing Sizhong secure behind the River Mian, he left Liao Hua to hold it and went to relieve the northern position.

Aftermath and Significance

At night, Guan Ping’s force attacked the northern camp and found it empty. Xu Shang and Lü Jian then struck them by surprise. After heavy losses, Guan Ping’s men withdrew toward Sizhong, only to discover that it was burning and that the Wei army had taken the encampment. Guan Ping and Liao Hua escaped and returned to Guan Yu with news of the broken defenses, Cao Cao’s advance on Fancheng, and Lü Meng’s capture of Jingzhou.

Yancheng’s fall therefore does more than cost Guan Yu one stronghold: it begins the unravelling of a connected line of positions. Xu Huang’s feigned allegiance draws its commander away, while the false report about Jingzhou and the apparently safe Sizhong compound the confusion. The result is a retreat that strips Guan Yu’s forces of their forward bases just as the attack on Fancheng approaches.