Comment by bawolff

I don't think they are. The ICC is much more a succesor to Nuremburg than the ICJ is.

The ICC applies international criminal law, just like nuremburg trials did (a notable difference though is the ICCs lack of juridsiction over crimes of aggression which was a core part of the Nuremburg trials). The ICJ is not a criminal court and does not apply international criminal law. It cannot find individuals guilty. A rough analogy would be that the ICJ is more similar to a civil court.