>It's based on the will of the countries as expressed through UN. Of course they are there to negotiate in their best interest.
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>Are you saying that when those resolutions were passed, the US didn't have the power of veto?

No, I'm not saying that. To the best of my knowledge, the U.S. has always had veto power in regard to U.N. Security Council resolutions. However, the point is still the same. Nations tend to work in their own interests.