The Islamic State has been mostly destroyed on the battlefield, but the war is far from over. Air strikes cannot kill an idea, and so it has fallen to Iraq's fractured security, intelligence, and justice systems to try to finish the task. But, insofar as there is a strategy, it seems almost perfectly crafted to bring about the opposite of its intent.
For three years, the Islamic State controlled half of Syria and a third of Iraq, a swath of territory approximately the size of Great Britain, which included millions of people. It conscripted local bureaucrats, doctors, and teachers, often on pain of death, and devoted enormous effort to radicalizing a generation of children and inuring them to violence, suffering, and loss. At the height of its success, in 2014, there was a real possibility that ISIS would capture Baghdad, and the Iraqi state would collapse. But now, more than a year after ISIS lost Mosul—its largest source of legitimacy, wealth, and power—hundreds of thousands of civilians are suffering at the hands of their liberators. Anyone with a perceived connection to ISIS, however tenuous or unclear, is being killed or cast out of society.
Thousands of men and boys have been convicted of ISIS affiliation, in five-minute show trials, and hundreds have been hanged. Their relatives have been rounded up by the security forces and sent to remote desert camps, where they are routinely denied food, medical services, and access to documents.
A senior Iraqi intelligence official said his government's response is as much a tactical blunder as it is a moral one; it plays directly into the jihadis' narrative—that Sunnis, who make up a minority of the Iraqi population, cannot live safely under a government dominated by Shiites. "The reaction is one of vengeance—it is not well thought out," he told journalist Ben Taub. "We rarely abide by the law."
Iraq is now entering one of the most delicate moments in its recent history. To the extent that ISIS functioned as a state, it was entirely predatory. But, by having lost on the battlefield rather than being toppled by its own depravity, the caliphate lives on as a fantasy of Islamic justice and governance which is measured against the corrupt reality of the Iraqi state. What is at stake, in this post-conflict period, is whether the Iraqi government can win over the segment of the population for whom ISIS seemed a viable alternative.