The prime minister said: "Almost 100 years ago, the whole world came together and said that the use of chemical weapons was morally indefensible and completely wrong. What we have seen in
Syria are appalling scenes of death and suffering because of the use of chemical weapons by the Assad regime.
"I don't believe we can let that stand. Of course any action we take, or others take, would have to be legal, would have to be proportionate. It would have to be specifically to deter the future use of chemical weapons.
http://www.theguardian.com/politics/2013/aug/27/cameron-clegg-uk-role-syria-strike