The Battle of Khalkhin Gol, sometimes spelled Halhin Gol or Khalkin Gol after the Halha River passing through the battlefield and known in Japan as the Nomonhan Incident (after a nearby village on the border between Mongolia and Manchuria), was the decisive battle of the undeclared Soviet–Japanese Border War.
The Battle of Khalkhin Gol, also known as Halhin Gol or Khalkin Gol after the river that runs through the battlefield, and in Japan as the Nomonhan Incident (after a village on the border between Mongolia and Manchuria), was the decisive battle of the undeclared Soviet-Japanese Border War.