Massie outlines them:
The UN is useful only as a starting pistol and once the planes are flying the UN can be ignored. Some might find it strange that our ability to do "the right thing" is so contingent on the approval of all the wrong people and that we cannot ignore those people in the build-up to the fighting but can, indeed must, ignore them once the shooting match begins but there you go, that's the remarkable worlds of international diplomacy and modern warfare for you.
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