 The deaths of Liu and Han, both of whom were close associates of Emperor Wen, brought fear into the heart of another associate of Emperor Wen—Hua Jiao (華皎) the governor of Xiang Province (湘州, modern central Hunan).In summer 567, Hua therefore submitted himself to Northern Zhou and Northern Zhou's vassal state, Western Liang.Chen Xu sent Wu and Chunyu Liang (淳于量) to lead a fleet against the joint forces of Hua, Northern Zhou, and Western Liang.