The fighting at Lake Hassan unfolded from July 29 and was actively conducted until August 11, 1938. The subject of the dispute was a small section of the territory of the USSR on the Soviet-Manchu Far Eastern border. During the active confrontation between the formations of the 39th Rifle Corps of the Red Army and the Japanese units of the Kwantung and Korean armies, the imperial troops were expelled from Soviet territory, and the territorial conflict was settled on Soviet conditions.