Robert Houghwout Jackson

“ We do not need to investigate the verity of doctrines which led to constantly expanding circles of aggression. It is the plot and the act of aggression which we charge to be crimes.
Our position is that whatever grievances a nation may have, however objectionable it finds the status quo, aggressive warfare is an illegal means for settling those grievances or for altering those conditions. ”

“ And I further suggest that it is the general view that no political, military, economic or other considerations shall serve as an excuse or justification for such actions; but exercise of the right of legitimate self-defense, that is to say, resistance to an act of aggression, or action to assist a State which has been subjected to aggression, shall not constitute a war of aggression. ”

“ A basic provision of the Charter is that to plan, prepare, initiate, or wage a war of aggression, or a war in violation of international treaties, agreements, and assurances, or to conspire or 'participate in a common plan to do so is a crime. ”