Battle of Baxi
215 CE.
Shown on the map at 33.173°, 106.671°.
The Battle of Ba was fought between the warlords Liu Bei and Cao Cao between December 215 and April 216 during the prelude to the Three Kingdoms period. Following his victory over Zhang Lu at Yangping, Cao Cao appointed Pu Hu (朴胡), Ren Yue (任約) and Du Huo (杜濩) as Administrator of the three Ba commanderies but they were defeated by Huang Quan. Zhang He would later try to relocate citizens from Ba to Hanzhong but was also defeated by Zhang Fei.
Text from the Wikipedia article Battle of Ba, licensed CC BY-SA 4.0.