This is an excellent, MUST READ article bu Paul Schulte, a former UN Disarmament Commissioner. Check it out!
This is a very balanced viewpoint, in my judgement. Let me share the conclusion:
This is a wicked problem with two principles (often labelled formal legality versus moral legitimacy) in grinding dispute. But under these ugly yet ineluctable circumstances, a default option to do nothing is a far-reaching decision in itself.