I think we can make a comparison between what happened in Mali or Lybia & what is happening in syria .
Here , he just keep making execuses to show the world that him and Nato they care.
They put excuses that UN agreement has to be taken
But in Mali & Lybia they didn' t even needed one.
The funny part is here : they declared that they will make airstrikes againt some "islamic extremist " groups in case Asad lost