Wu Guang
Also in 933, the Wu general Jiang Yanhui (), trying to take advantage of a rebellion by Wu Guang () against Wu's southeastern neighbor Min, put Min's key city of Jian Prefecture (建州, in modern Nanping, Fujian) under siege and nearly captured it. However, upon receiving reports of Jiang's campaign, Xu was apprehensive of the fact that Jiang was a son-in-law of Yang Xingmi's and had a particularly friendly relationship with Yang Pu's brother Yang Meng the Prince of Linchuan — who was resentful of the Xu family's hold on power — and that he thus might, if he captured Jian, use it as a base to support Yang Meng against Xu. Xu thus sent an order for Jiang to withdraw, which Jiang did, with substantial losses when his retreating army was attacked by Min forces.