Dornod Province is located in eastern Mongolia. To the east and south is the international border with Manchuria (Manchukuo) today China.
During May to September 1939, a border dispute known as the Battle of Khalkhin Gol / Nomonhan Incident happened between the Japanese and Manchukuoans versus Mongolian and Russians. Afterwards, the border remained as the Soviet Union and Mongolia claimed it.
On August 9, 1945 after midnight, Soviet forces launched "Operation August Storm" attacking Manchuria on three fronts including the Harbin–Kirin Offensive Operation (Harbin-Jilin) launched from eastern Mongolia.
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November 11, 2020