Battle of Talas
The Battle of Zhizhi (郅支之戰) was fought in 36 BCE between the Han Dynasty and the Xiongnu chieftain Zhizhi Chanyu. Zhizhi was defeated and killed. The battle was probably fought near Taraz on the Talas River in eastern Kazakhstan, which makes it one of the westernmost points reached by a Chinese army. The Battle of Talas in CE 751 was fought in the same area.