Tank Battle of Khalkhin Gol

It was the eve of June 20th, and the Japanese headquarters in Manchukuo enacted emergency mobilization of the 3rd and 4th Tank Regiments. Soviet armies moved alongside the Manchurian border, preparing to retaliate for the border skirmish between Mongolian calvary units under supervision of the Soviet Union, and Manchurian infantry regiments. A border dispute between two puppet states forced the response of the Empire of Japan and Soviet Union to mobilize their borders.

Japanese Tank Regiment's pushing around the Harzha River to the frontline.