Speaker agrees my request to recall Parliament on Thurs. There'll be a clear Govt motion & vote on UK response to chemical weapons attacks— David Cameron (@David_Cameron) August 27, 2013
Syria has already announced that in the event of a US military strike it will defend itself with "all available means".
Earlier Cameron demanded that the international community respond, following aggressive comments from US secretary of state John Kerry.
Kerry said that the situation in Syria "is inexcusable and -- despite the excuses and equivocations that some have manufactured -- it is undeniable."