The Nuremberg trials were only allowed to happen because of how badly the Nazis were beaten at the end of WW2. They also didn’t possess nuclear weapons. If the Americans were about to critically lose a war like the Nazis did, to the point where they would be standing trial for warcrimes a la the Nuremberg Trials, they would probably detonate their arsenal.

Also, is it illegal to deploy troops on your own soil? I wasn’t aware of that rule.