Germany maintained a high K/D ration throughout the war and saw wins an losses. Most German tanks and allied tanks could spare off against one another.
This is what happened when the Soviet Union finally went to war with Japan, which lasted 11 days in total:
A KV-1 would be like a King Tiger to the Japanese army.
It can be true but don't forget when Soviet attack Korea, Imperial Japan was in her worst stage, the once mighty navy got swarmed and wrecked, naval supply line were broken, and they could not even support their army deep in China.