Six consecutive days of cross border shelling from Syria have Turkish officials increasingly frustrated with US policy on Syria. Shadi Hamid of the Brookings Institution's Doha Center says Turkish policymakers want the US to do more to aid the Syrian opposition.
Turkish officials "feel that they're out there on their own. There's even a sense of betrayal," Hamid says.
Hamid thinks White House concerns about the dangers of aiding the opposition are legitimate, and appreciates that advanced weaponry destined for the Syrian opposition could get into the hands of extremists. But Hamid argues that terrorist and extremist elements are a "small minority" of the Syrian rebel forces.
"We shouldn't just assume that Islamist equals jihadist," Hamid says. "There can be a more coordinated effort to work with certain groups on the ground and make sure arms are getting to the right people."