Imperial Japanese Army soldiers make banzai cheers on the seized BT tanks of Soviet-Mongolia forces during the battle of Khalkhin Gol in July 13, 1939 near Hulun Buir, Inner Mongolia, China. The battle of Khalkhin Gol was the border conflict between Mongoria and Manchukuo, backed by the Soviet Union and the Imperial Japan respectively, between May 11 to September 16, 1939.
