The nations opposed to ISIS are strange bedfellows -- the United States, its Arab allies, and NATO member Turkey as well as Iran and its ally Syria. Together, a coalition of these rivals would include almost all of the region's combat power, both Sunni and Shia nations. ISIS would be surrounded on every side. Yet such a coalition is unlikely to emerge.
The world's most feared jihadi group, the Islamic State (ISIS), is parlaying its dramatic gains in Iraq into Syria. Already flush with cash and weapons, ISIS stands to receive another, invaluable windfall in Aleppo, Syria's largest city prior to the war. Regime forces there are on the verge of encircling opposition militants. Their success in doing so would benefit ISIS as much as it would Bashar al-Assad, throttling the more moderate rebel enemy both share.