Hitler could have beaten the Soviets (Germany had in 1917); the problem (ignored by many historians) was that Japan and the USSR had a truce that lasted into 1945. This allowed the Soviets to move most of their troops from the Far east to defend Moscow and drive the Axis back.
Hindsight is 20/20, but if the Japanese had used their troops against the USSR instead of China it would have collapsed (on one front or the other). Instead, at the time of the surrender in 1945, Japan had over a million troops in China accomplishing nothing at all.
uh, in WW 1, there were no “Soviets” - to equate beating Tsarist Russia in WW 1 with beaing the Soviets in WW 2 is not a valid comparison. The Soviet Union was established in 1922, tho the communist revolution happened in 1917.