Everyone hopes they are done with counting coup and taking vengence.
And these figures are on the low end. Some have put them as high as 110 million.
Chaing Kai-Shek (who fought both) got it right when he said Japanese Imperialism is a disease of the skin, but Communism is a disease of the heart.
The relevant point today is that Japan is the most Pro-American Government in Asia (with the possible exceptions of Singapore and Taiwan). The chances of them doing anything like this again today is zip.
The chances of China doing it, and using these type of stories for justification, is a lot greater and more threating.
While these type of stories need to be told from a historical perspective, the lesson needs to be NOT "look what xyz nationality has done" but "look what happens when a people cuts loose of their moral moorings and substitute loyalty to a fanatical regime for loyalty to God."
Japanese Imperialism hasn't killed anyone since September 1, 1945. Lieberalism continues to kill millions.