Retaliation in Syria: what are May's options?

Theresa May does not currently have a parliamentary mandate to participate in a major military response to Saturday’s chemical weapons attack in Syria, though arguably she has a right to lend limited help to a US assault if Donald Trump chooses to go ahead with such a plan.In December 2015 British MPs voted by 397 to 233 to give David Cameron’s government a mandate to use military force – short of deploying ground troops – to hit Islamic State targets in Syria, though not