The Balhae controversies involve disputes between China, Korea, Japan, and Russia, countries that have conducted studies on the historical state of Balhae (Bohai, Po-hai, Parhae). The Korean perspective generally considers Balhae to be the successor state of Goguryeo and part of the Northern and Southern States period of Korean history, while Chinese scholars generally consider Balhae to be a state of the Mohe people, a Tungusic ethnic group, and subordinate to the Tang dynasty (618––907).[1][2] In Russian historiography, Balhae is recognized as the first highly organized independent state formation of the Tungus-Manchurian peoples.[3]