Your post highlights the many problems that occur when judging who is - and who is not - a war criminal. Certainly the Nazis who were on trial at Nuremberg were war criminals. And they deserved their fate.
But what about the guy who drove the train to Auschwitz? Did he deserve to hang? What about the guy who marched children off to the gas chambers? Did he deserve to hang?
What about William Calley, who was convicted of murdering 22 unarmed South Vietnamese civilians at My Lai? Did he deserve to hang?
As you noted, GSC, G_d will judge them all.
RE War Criminals:
The communists murdered more innocent human beings than Hitler and his brand of socialists ever dreamed of. That makes THEM “war criminals” in my book too.
Maybe one of these days, we’ll pursue, prosecute, and apply permanent justice to them with equal vigor...