衛青
In the spring of 129 BC, Wei Qing and three other generals led a cavalry force of 40,000 in an attack on the Xiongnu at the frontier markets of Shanggu. Wei Qing successfully killed several thousand Xiongnu and took 700 prisoners. General Gongsun Ao was defeated and lost 7,000 men. He was reduced to commoner status. Li Guang was defeated and captured but managed to escape by feigning death and returned to base. He was reduced to commoner status. Gongsun He failed to find the Xiongnu. That winter the Xiongnu attacked Yuyang in You Province in retaliation.