US President Barack Obama said the alleged use of chemical weapons by Bashar al-Assad's regime is "not just a Syrian tragedy, it's a threat to global peace and security."
The G20 summit in St Petersburg exposed stark divisions between host Vladimir Putin and US President Obama over Syria.
War emptied the suburb of Yarmouk in southern Damascus of its people. Assad's army holds it, but their prize is a ghost town.
Even in the President's heartland of Baltimore, 95% of voters are against his policy on military intervention in Syria.