Syria's Islamist Rebels Win a Major Victory

Syria's Islamist rebels won a pivotal victory over the weekend. By taking the city of Idlib, Jabhat al-Nusra and Ahrar al-Sham will be able to recruit smaller groups and threaten other strategically important cities. The victory is also another indication the groups have become proficient in using armored vehicles and sophisticated tactics. At the very least, the United States and its regional allies will have to negotiate with another faction to manage Syria's eventual power transition.