‘US government documents admit that the atomic bombing of Hiroshima and Nagasaki was not necessary to end WWII. Japan was on the verge of surrendering. The nuclear attack was the first strike in Washington's Cold War on the Soviet Union. Ben Norton reviews the historical record.’
you probably know this but for the sake of clarity, the atomic bombs were dropped on August 6th, and a few days later on the 9th. Soviets invaded on the 7th. their plans for Hokkaido were for the 24th, and cancelled by the surrender.
post war assessments make clear that soviets' comprehensive destruction of the Kwantung army was perceived by parts of the japanese and us governments as sufficient on its own to force the surrender, but your comment sort of reads like the americans dropped the bombs after the soviet's success to force the japanese to surrender to them instead, which is chronologically unsound.