Many units of the Siberian and other trans-Ural armies were part of this attack, and the decision to move these divisions from Siberia was aided by the Soviet spy Richard Sorge in Tokyo, who alerted the Soviet government that the Japanese were looking south and were unlikely to launch another attack against Siberia in the immediate future.
Mange sibiriske og andre trans-uralske enheder tog del i dette angreb, og beslutningen om at flytte divisionerne fra Sibirien blev hjulpet på vej af den sovjetiske mesterspion Richard Sorge i Tokyo, som kunne meddele den sovjetiske regering, at japanerne havde øjnene rettet mod syd, og sandsynligvis ikke ville iværksætte et nyt angreb mod Sibirien foreløbig.