Korean forces under general Kim Yu-sin of Silla defeat the army of Baekje in the Battle of Hwangsanbeol.

Kim Yu-sin was a Korean military general and politician in 7th-century Silla. He led the unification of the Korean Peninsula by Silla under the reign of King Muyeol and King Munmu. He is said to have been the great-grandchild of King Guhae of Geumgwan Gaya, the last ruler of the Geumgwan Gaya state. This would have given him a very high position in the Silla bone rank system, which governed the political and military status that a person could attain.

Baekje or Paekche was a Korean kingdom located in southwestern Korea from 18 BCE to 660 CE. It was one of the Three Kingdoms of Korea, together with Goguryeo and Silla. While the three kingdoms were in separate existence, Baekje had the highest population of approximately 3,800,000 people, which was much larger than that of Silla and similar to that of Goguryeo.

The Battle of Hwangsanbeol took place between the forces of Silla and Baekje in Hwangsanbeol in 660.