New information about intelligence activities of Japan and the USSR in Mongolia and Hulunbuir during the Second World War

The article examines the activities of Japanese intelligence in the Eastern Mongolia and Soviet intelligence in Hulunbuir during the World War II. The Soviet spies were the agents of the anti-Japanese Daurian underground organizations in the city of Hailar. The authors have studied new materials on the revitalization of the Japanese intelligence service in Eastern Mongolia. In turn, the Soviet intelligence had agents in Hulunbuir, which collected intelligence information on the deployment of military units, airfields and fortified areas. The authors believe that the activities of Daurian anti-Japanese underground played a significant role in the rapid defeat of the Kwantung army in August 1945.