Chris Toensing is editor of Middle East Report, published by the Middle East Research and Information Project.

The appalling civil war in Syria is well into its third year. With upwards of 70,000 dead, countless numbers maimed and injured, and millions of refugees, there are recurrent calls for the United States to “do something” to end the mayhem. That “something” is usually defined as military intervention — imposing a no-fly zone, arming the rebels, even sending the Marines.