Balhae is a mixed ethnic Korean and Mohe kingdom established in northern Korea and Manchuria after the fall of Goguryeo.

It exists during the North South States Period of Korea along with Unified Silla.

After Goguryeo's capital and southern territories fall to Unified Silla, Dae Jo-yeong, a man from Goguryeo whose father was Dae Jung-sang, establishes Jin, later called Balhae.

It is a successor state to Goguryeo.Balhae occupies southern parts of Manchuria (Northeast China) and Primorsky Krai, and the northern part of the Korean peninsula.

It is defeated by the Khitans in 926, and most of its northern territories are absorbed into the Liao Dynasty while the southern parts are absorbed into Goryeo.