@Lord Seraph
Well, Hitler eventually chose Japan over China after he perceived that the Japanese were doing better against the Chinese (alone). But yes, China did receive technical training from German generals at the beginning of the Second Sino-Japanese War.
Japan’s war crimes during WW2 are also an ugly topic. Some would even say that the Showa Japanese committed more atrocities than the Nazis.
@OptimusPrimevil
Even then, i doubt Japan invading Siberia would have made much of a difference. The IJA was a bunch of toy soldiers if compared to the smart and more resourceful Red Army, it’s not a surprise that they got their asses handed to them on a plate at Kalkhin Gol.