Paddy Ashdown made a good speech that every military intervention ever in history has had fallout, both expected and unexpected. That's the price of taking action. What it will do though is make a bloody big statement, as with the first gulf war, that we're through with dicking around with countries that treat the most sacred bits of international law as toilet paper.
My thoughts are the same as those of Paddy Ashdown:
“In 50 years trying to serve my country I have never felt so ashamed.”