Western Wei
In spring 536, Gao made a deep incursion into Western Wei territory, capturing Xia Province (夏州, roughly modern Yulin, Shaanxi), while also rescuing his ally Cao Ni (曹泥) the governor of Ling Province (靈州, roughly modern Yinchuan, Ningxia), who had been trapped behind Western Wei lines. The Western Wei general Moqi Pu (万俟普), his son Moqi Shouluogan (万俟受洛干), and other generals Chigan Baole (叱干寶樂) and Poliuhan Chang (破六韓常), who were stationed in the western Western Wei territory, also joined Gao and returned to Eastern Wei with him.