Fuzhou, Jiangxi
In 918, Wu launched a major attack on Qian Prefecture, commanded by the officer Wang Qi (王祺), with troops from four prefectures — Hong (洪州, in modern Nanchang, Jiangxi), Fu (撫州, in modern Fuzhou, Jiangxi), Yuan (袁州, in modern Yichun, Jiangxi), and Ji (吉州, in modern Ji'an, Jiangxi). This attack came as a surprise to the people of Qian, as Wu's strategist Yan Keqiu had spent large amount of funds to employ engineers to open up the waterway through Ganshi (贛石, in modern Ji'an), which was difficult to navigate, to allow the Wu ships through. However, Qian had good natural defenses, and the Wu forces were not able to capture it quickly. The Wu forces then suffered through plagues, which killed many soldiers, including Wang, who was then replaced by Liu Xin (劉信).