Here is an idea to help control domination and total disregard to human life by rich nations with well equipped armed forces and even those rouge nations:

In any conflict if an organized army kills a civilian it will have to compensate the victim's family based on value of an average US life. For example if US a soldier kills an Afghan, the family will receive how US courts calculates loss of average US citizen's life plus hardship. That mount can be an average yearly cases in the civil courts.

Imagine if that was the case perhaps Bush and rest of criminals would have had second thought about invading a country based on lies and fabricated evidence.