 Chen Qian was holding his position at Changcheng with several hundred men, and when Du's army attacked him with 5,000 men, he was able to hold against Du's attack, preventing Du from attacking Chen Baxian.This allowed Chen Baxian to come to his aid, forcing Wei to surrender and Wang Sengzhi to flee to Du.Chen Baxian subsequently returned to Jiankang (with Northern Qi forces, along with those of the generals Xu Sihui (徐嗣徽) and Ren Yue (任約), attacking Jiankang), leaving Chen Qian in command of the armies facing Du, joined by Chen Baxian's general Zhou Wenyu (周文育).