Following the use of chemical weapons by Bashar al Assad, who has violated all the red lines in international politics, the US and others have started to discuss a possible military intervention in Syria, but this is mostly because they have concerns about maintaining the legitimacy of the international system.
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A combination of obligations and concerns will determine the scope of the possible intervention in Syria.
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Today we are witnessing the emergence of a new extreme in US policy. Now it is not about what the US is doing but instead about what the US is not doing...