The deeper point here is that regional organizations, including NATO, provide the first level of legality and legitimacy required for a successful use of force. The US would not have supported intervention in Libya if the Arab League had not supported a no-fly zone and been willing to go to the UN on that basis.
这里有一个深层次的问题，地区组织，包括北约在内，提供的是成功使用武力的第一层次的合法性和合理性。如果阿盟当初不支持建立禁飞区并对此在联合国投赞成票，美国根本不会支持干预叙利亚。