The Qin armies also advanced south along the Xiang River to modern Guangdong and set up commanderies along the main communication routes .
After the unification of China by Qin Shi Huang , the former Wu and Yue states were absorbed into the nascent Qin empire .
The Qin armies also advanced south along the Xiang River to modern Guangdong and set up commanderies along the main communication routes .
After the unification of China by Qin Shi Huang , the former Wu and Yue states were absorbed into the nascent Qin empire .