Ditto everything JMM said, for mostly the same reasons.

I would also add that the trials of Milosevic, Krstic, Karadzic, etc have accomplished nothing. They are not a deterrent, they do not bring hostilities to a close, they do not bring reparations to the bereaved, and they do not help to lay a foundation for future peace. It's a lot of show and bluster.

The ICC has jurisdiction over individuals, not states, so I don't even think there is a whole lot of useful law/precedent that gets clarified.