Aggression (war crime)

Waging a war of aggression is a crime under customary international law and refers to any war not out of self-defense or sanctioned by Article 51 of the UN Charter.The International Military Tribunal at Nuremberg, which followed World War II, called the waging of aggressive war "essentially an evil thing...to initiate a war of aggression...is not only an international crime; it is the supreme international crime differing only from other war crimes in that it contains within itself the accumulated evil of the whole."[1]
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