(New Yorker / Worthy News)– First Falluja, then Mosul, and now the oil-refinery town of Bayji. The rapid advance of Al Qaeda-inspired militants across the Sunni heartland of northern and western Iraq has been stunning and relentless—and utterly predictable. Here’s a forecast: the bad news is just beginning.
Iraq’s collapse has been driven by three things. The first is the war in Syria, which has become, in its fourth bloody year, almost entirely sectarian, with the country’s majority-Sunni opposition hijacked by extremists from groups like ISIS and Jabhat al-Nusra.
The second factor—probably the dominant one—is the policies of Nuri Al-Maliki, Iraq’s Prime Minister.
Which brings us to the third reason. When the Americans invaded, in March, 2003, they destroyed the Iraqi state—its military, its bureaucracy, its police force, and most everything else that might hold a country together. They spent the next nine years trying to build a state to replace the one they crushed. By 2011, by any reasonable measure, the Americans had made a lot of headway but were not finished with the job. — Source
(Editor's Note: Highly informative piece, this is just a small snippet of the article in the New Yorker.)