Battle of Anyi
204 BCE.
Shown on the map at 28.845°, 115.549°.
The Battle of Anyi (安邑之戰) was fought between the Kingdom of Han and the Kingdom of Wei fought in August 205 BC during the Chu-Han Contention. It suppressed Wei Bao's rebellion and paved the way for the invasion of the Kingdom of Dai, and ultimately, the Battle of Jingxing.
Text from the Wikipedia article Battle of Anyi, licensed CC BY-SA 4.0.