Why ISIL Will Fail on Its Own

Deciding how we think about ISIL is critical to deciding how to fight it. President Obama said he plans to stay the course by intensifying his current policy, which you might call containment plus: contain the group’s expansion in Syria and Iraq, and hasten its demise with steady air strikes and support to regional allies. His critics, meanwhile, call for a range of options, from allowing local forces to defeat the group, to easing the rules of engagement for airstrikes, to deploying U.S. special forces, to a large-scale campaign using 20,000 or more U.S. troops in direct combat ground roles.
Which is right? The answer depends at least in part on what kind of an enemy we think ISIL really is. Is it a tremendously well-resourced terrorist group that controls substantial territory, which it uses to plan attacks, vet operatives and manage a complex financial network? Or is it a fledgling nation-state that sponsors terrorist attacks? If we view ISIL as the former, then containment seems like an odd strategy, since even if contained it could continue to support terrorist attacks. But if we view it as a state, then it looks very different: a desperately poor nation trying to fight a three-front war—Iraq to the East, the Kurds to the North and Syria and other insurgents to the West.