What do you want to know about the Syrian civil war?

Syria is four-and-a-half years into a civil war, pitting multiple armed opposition groups against each other and President Bashar al-Assad's regime. The dynamics and basic details of this complex conflict can be hard to follow. We're working on a project we hope will help clarify things. We'd like your input to guide us on that.
    This is a required question
    This is a required question
    This is a required question