 In spring 552, Emperor Wenxuan himself led troops against the Kumo Xi tribe (in the upper Liao River drainage area) and achieved a great victory.Around the same time, he also sent generals to seize certain border cities with Liang, as Liang troops continued to battle Hou Jing, who declared himself the Emperor of Han in 551 but was subsequently defeated by Emperor Yuan of Liang in 552.The campaigns of seizing Liang cities continued even after Hou's defeat, although he did not at this point launch a single major attack on Liang.