The president's four-pronged strategy of airstrikes, support to local proxies, defending against ISIS attacks through intelligence and counter-terrorism, and humanitarian assistance leaves many unanswered questions. It's hardly a clear articulation of the sort of long-term, holistic strategy needed to deny ISIS the fertile ground it needs to thrive. The approach is fraught with tradeoffs, risks and hidden costs that need to be addressed.

Frederic Wehrey
Frederic Wehrey is a senior fellow in the Middle East Program at the Carnegie Endowment for International Peace. His research deals with armed conflict, security sector governance, and U.S. policy, with a focus on Libya, North Africa, and the Gulf.
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The focus on targeting ISIS leadership -- drawing from what President Obama hailed as successful campaigns in Yemen and Somalia -- doesn't create the conditions on the ground for a lasting solution to the movement. High-value leadership targeting through precision strikes carry the risk of collateral casualties and of radicalization. And the record shows that militant leadership cadres can reconstitute themselves quickly, making such a strategy akin to a game of "whack-a-mole."

The emphasis on coalitions, while laudable in concept, also carries hidden risks: each of Iraq's Arab neighbors will be pursuing competing agendas that may run counter to America's stated objectives. And the solicitation of Gulf support will come with costs: the U.S. must be leery of turning a blind eye to the repressive policies of these regimes toward legitimate Islamist opposition groups under the newfound framework of "counter-terrorism."

Each of America's local allies against ISIS also have their own agendas -- the so-called "moderate" Syrian opposition, the Kurdish peshmerga and the Shiite militias, and there's evidence that each is already using airstrikes as convenient cover to advance their own political objectives.

Ultimately, Baghdad holds the key to the long term: how power is distributed in the capital's institutions. Obama cited U.S. support for the devolution of security responsibilities to Sunni tribes as part of the national guard structure. But this must be pursued carefully, to avoid setting the conditions for warlordism and militia rule.

Finally, the U.S. shouldn't focus too much on counter-ideology -- this is an argument without end, and religious factors are probably tangential to the more societal, economic and political grievances that drive the rank-and-file, whether they are alienated young Muslims from the West, Anbari tribes or ex-Baathist officers.

Obama rightfully dismissed ISIS's religious pretensions. The caliphate discourse is the mobilizing vocabulary for something that is ultimately more mundane and worldly: the absence of credible and inclusive institutions that can temper the appeal of toxic sectarian identities and radical religious voices.

This article was originally published in CNN.