Moral justification for the execution of criminals of war?

[Jehanne]

To sum up your post, "Might makes right."

Not really.  If you have might,  you don't even NEED to be right.  You might pretend to be in the right, though, just for the PR of it.

Ask the thousands of brown people, many of them women and children, that have been bombed by American drones in the past decades, under administrations of both parties.  You don't see Obama crying over little 6-year old Ahmed, the goat-herder's son.

Which is probably why Humanity is destined to destroy itself. Don't even think about talking to the destitute goat herders in Afghanistan about their poor efficiency gas engines.