Manchuria

Manchuria is a historical region in Northeast Asia encompassing the entirety of present-day Northeast China and parts of the modern-day Russian Far East south of the Uda River and the Tukuringra-Dzhagdy ranges. The exact geographical extent varies depending on the definition: in the narrow sense, the area constituted by the three Chinese provinces of Heilongjiang, Jilin, and Liaoning as well as th... (Wikipedia)