Battle of Yiwulu

The Battle of Yiwulu took place during a major Han dynasty expedition against the Xiongnu in February AD 73, after the fall of the Xin dynasty. The battle was a success for the Han, who were led by Dou Gu. In 73, annoyed at the Xiongnu's constant incursions against the northern border, the Han dynasty dispatched four columns, commissioned generals Dou Gu and Geng Chong to lead an army against the Xiongnu from Jiuquan. The majority of this expedition had only minor successes, with the exception of the capture of Yiwulu.