Claim: The vicinity of Tongjiang was attacked from 698 to 936 by Funie Mohe tribes, who were later submitted to Balhae Kingdom under King Mun's reign in 737 to 793.
Evidence: King Mun of Balhae (r. 737–793), also known as Dae Heum-mu, was the third and longest-reigning ruler of the Balhae. The vicinity of Tongjiang was settled at this moment by Funie Mohe tribes (Hanja/Hanzi: 拂涅靺鞨; pinyin: Fúniè Mòhé; Korean: 불열말갈). From 698 to 936, the kingdom of Balhae occupied northern Korea and parts of Manchuria and Primorsky Krai, consisting of the Nanai, the Udege, and descendants of the Tungus-speaking people and the people of the recently fallen Goguryeo kingdom of Korea. These tribes were submitted to Balhae Kingdom under King Mun's reign (737-793).