In early August, ISIS forces attacked the Lebanese Syrian refugee border town of Arsal, provoking a major fire-fight with the Lebanese Army. Apparently, one of ISIS's major military commanders -- Imad Ahmad Jomaa -- had been apprehended inside the refugee camp (holding hundreds of thousands of Syrian refugees) likely on a recruiting mission to create a fifth column of ISIS operatives inside Lebanon.
The U.S. already destroyed the political, economic and social infrastructure of Iraq, turning it into an anarchic free-for-all of every clan for itself. We in the West try to deny the ugly consequences of our own actions by shrugging our shoulders and noting that Iraqis are, after all, "eternally tribal." But who do you turn to when the proverbial excrement--the destruction of your country--hits the fan? Most people revert to their core social identities--their clans, tribes, sectarian or regional groups--the only ones that can provide security against anarchy and enemies.