Islamic State of Iraq and Syria (Terrorist Organization)

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ISIS (Islamic State of Iraq and Syria), also known as ISIL (Islamic State of Iraq and the Levant), is a Sunni jihadist group with a particularly violent ideology that calls itself a caliphate and claims religious authority over all Muslims. It was inspired by al Qaida but later publicly expelled from it. RAND terrorism experts have analyzed the group's financing, management, and organization; its savvy use of social media for recruitment and fundraising; and the instability that spawned the group as a regional problem in the Middle East.

  • Iraqi soldiers fire a rocket toward Islamic State militants on the outskirts of the Makhmour south of Mosul, Iraq, March 25, 2016, photo by Azad Lashkari/Reuters

    Content

    How to Roll Back ISIL and Other Terrorist Threats

    Sep 30, 2016

    ISIL is the most active group among Salafi-jihadists, waging a wide campaign. Defeating the group will require moving it from a quasi-state to an insurgency to a suppressed movement that controls little or no territory or population.

  • Members of the Free Syrian Army distribute humanitarian aid to residents left in Harem town, Idlib Governorate, October 28, 2012, after Syrian jets bombarded Sunni Muslim regions across the country, photo by Asmaa Waguih/Reuters

    Report

    The U.S. Strategy to Defeat the Islamic State Needs an Overhaul

    May 8, 2017

    A broader strategy to beat the Islamic State should address the conditions that allowed the group to emerge and thrive. A long-term commitment is required to establish legitimate governance in Iraq and Syria and reconcile the disenfranchised Sunni Arab populations with their governments.

Explore The Islamic State (Terrorist Organization)

  • People walk in front of the remains of the University of Mosul, which was burned and destroyed during a battle with Islamic State militants, in Mosul, Iraq, April 10, 2017.

    Commentary

    Moving Beyond Mosul

    The Islamic State group has been defeated in Mosul. But this military routing isn't enough to ensure lasting stability, either in Mosul or in Iraq more broadly. What comes next will require careful planning, diplomacy, implementation, and coordination.

    Jul 18, 2017

  • A member of Iraqi security forces holds an Islamic State flag on the top of a destroyed building from clashes in the Old City of Mosul, Iraq, July 10, 2017

    Testimony

    The Terrorist Diaspora: After the Fall of the Caliphate

    As operations against ISIS in Mosul conclude, militants are likely already fleeing—and preparing to wage jihad elsewhere. How can the United States identify and mitigate the threat posed by these foreign fighters?

    Jul 13, 2017

  • Rebel fighters walk out from a cave that was used by Islamic State militants, after they captured the area from them, on the outskirts of the northern town of al-Bab, Syria, February 2, 2017

    Multimedia

    The Evolving Terrorist Threat

    As ISIS loses territory in Iraq and Syria, are terrorist attacks more likely or less? How is the group evolving? What about al-Qa'ida? To answer these questions, RAND convened a group of terrorism experts.

    Jul 12, 2017

  • Iraqi soldiers pose with the Islamic State flag in al-Shura, Iraq, which they recaptured on October 30, 2016

    Blog

    Vickers, Crocker, Bergen, and Mudd Headline RAND ISIS Conference

    Panelists at a RAND conference on ISIS agreed that efforts to protect the U.S. homeland and conduct campaigns to dismantle extremist groups have had success. But many long-term challenges to the broader world order remain that will require strategic patience.

    Jul 6, 2017

  • The Grand al-Nuri Mosque where Abu Bakr al-Baghdadi declared a new caliphate in July 2014 is seen in ruins after it was retaken by Iraqi forces from Islamic State militants, June 30, 2017

    Commentary

    Can the Islamic State Survive If Baghdadi Is Dead?

    If and when self-declared Caliph Abu Bakr al-Baghdadi is killed, it will have little effect on the threat posed by the Islamic State to global security. The far more important objective is to continue dismantling the organization as a whole, including its affiliates in Libya, Egypt, Nigeria, and Afghanistan.

    Jun 30, 2017

  • Afghan local police (ALP) sit at the back of a truck near a frontline during a battle with the Taliban at Qalay-i-zal district, in Kunduz province, Afghanistan August 1, 2015

    Commentary

    Trump's Options for Afghanistan: Losing or Not Losing

    The Trump administration faces the choice of losing quickly by withdrawing from Afghanistan; losing slowly by maintaining America's current, inadequate commitment; or not losing by increasing that commitment enough to maintain a stalemate on the battlefield.

    Jun 23, 2017

  • Abu Bakr al-Baghdadi speaking at the al-Nuri mosque in Mosul, July 5, 2014

    Commentary

    Is ISIS Leader Baghdadi Still Alive?

    The Russian military announced that it might have killed the leader of the Islamic State, Abu Bakr al-Baghdadi, in an airstrike in Raqqa. Would his death weaken the group or will ISIS continue to adapt, evolve, and expand like al Qaeda did?

    Jun 22, 2017

  • A Kurdish fighter from the People's Protection Units watches smoke rise after a coalition airstrike in Raqqa, Syria, June 16, 2017

    Commentary

    The Islamic State's Disposable Army

    To leaders of the Islamic State group, murder of its own and collective suicide are keys to its defense strategy. The group targets malcontents and the most suggestible, knowing they are desperate to belong to something and willing to die for it.

    Jun 20, 2017

  • Smoke rises from the al-Mishlab district in Raqqa's southeastern outskirts, Syria, June 7, 2017

    Commentary

    When the Caliphate Falls, What Then for U.S. Policy?

    The eventual fall of ISIS-controlled Raqqa will necessitate a review of U.S. policy in Syria. Policymakers can start thinking about the questions it will raise now.

    Jun 16, 2017

  • A pedestrian looks at floral tributes for the victims of the attack on London Bridge and Borough Market, June 6, 2017

    Commentary

    Why Aren't There More Terrorist Attacks Like the One in London?

    The number of attacks like the one on London Bridge are low because jihadist ideologies have failed to gain traction in most Muslim countries, and it's difficult to recruit people remotely. Supporting violence and participating in it are two different things.

    Jun 7, 2017

  • Vehicles drive near Tabqa Dam on the Euphrates River, in the town of Tabqa, after Syrian Democratic Forces (SDF) captured it from Islamic State militants, Syria May 12, 2017

    Commentary

    Developing a Comprehensive Strategy for Countering the Islamic State

    Despite substantial policy and military focus, U.S. attempts to stop the Islamic State group have met with only varying degrees of success. A patient, long-term U.S. investment in governance—including a renewed commitment to addressing the root causes of instability in the Middle East—is needed in Iraq and Syria.

    Jun 5, 2017

  • A soldier sets up voice intercept equipment during a cyber integration exercise on Joint Base Lewis-McChord, Washington, October 21, 2015

    Commentary

    What Happens After ISIS Goes Underground

    As the Islamic State in Iraq and Syria suffers defeats on the battlefield, it is expanding its cyber presence to continue to encourage attacks abroad. The more the group relies on cyberspace, the more likely it will expose important segments of its organization to detection and disruption.

    May 30, 2017

  • A former Islamic State prison in the town of Tabqa, after Syrian Democratic Forces captured it from Islamic State militants, Syria, May 12, 2017.

    Commentary

    ISIS: Weakened but Still Potent

    ISIS is being defeated as an insurgency while preparing to transform into a clandestine terrorist group. But ISIS will continue to pose a serious threat to the countries where it operates and to the Western nations that it targets as it evolves.

    May 18, 2017

  • Displaced Iraqi people pass a torn Islamic State banner as the battle between the Iraqi Counter Terrorism Service and Islamic State militants continues nearby, in western Mosul, Iraq, April 23, 2017

    Commentary

    Can the Islamic State Survive Financially?

    Significant gains have been made in attacking the Islamic State's cash and diminishing its ability to finance high-frequency attacks in Iraq and Syria. But the group may retain enough money to support sporadic attacks in the Middle East, North Africa, and Europe.

    May 15, 2017

  • U.S. Army Special Forces members train Iraqi fighters from Hashid Shaabi at Makhmur camp in Iraq, December 11, 2016

    Commentary

    SOF's Evolving Role: Warfare 'By, With, and Through' Local Forces

    U.S. special operations forces are not providing the muscle of the frontline combat troops fighting ISIS in Iraq and Syria. Instead, they are providing meaningful support to the various indigenous forces. If they succeed, this model could become a standard option in the U.S. military playbook.

    May 9, 2017

  • An Iraqi security guard walks inside Al-Salam hospital destroyed during the fighting between Iraqi forces and Islamic State militants east of Mosul, Iraq May 2, 2017.

    Commentary

    The Caliphate Is Crumbling: What Comes Next?

    ISIL's caliphate is crumbling. But unless the U.S.-led coalition can reduce the many possibilities that might give ISIL's down-and-out members a reason to fight on, the militants will continue to contribute to disorder in the region.

    May 3, 2017

  • U.S. Army soldiers, deployed in support of Combined Joint Task Force - Operation Inherent Resolve, use a rooftop as an observation post in Mosul, Iraq, March 7, 2017

    Commentary

    NATO's Role in Post-Caliphate Stability Operations

    Steps are needed to fill the vacuum left as the caliphate collapses, lest forces on the ground turn on each other to gain control. The answer is for NATO to act under U.S. leadership. The alternative is either chaos or Iran — backed by Russia — filling the void.

    May 2, 2017

  • Afghan Special Forces prepare for battle with the Taliban on the outskirts of Lashkar Gah, the capital of Helmand Province, Afghanistan, October 10, 2016

    Testimony

    U.S. Policy Toward Afghanistan and the Region

    Afghanistan remains a key frontline state in the struggle against terrorist groups. With that in mind, the United States should make Afghanistan and neighboring Pakistan an enduring part of its counterterrorism efforts.

    Apr 27, 2017

  • Person holding a smartphone displaying influencer marketing

    Report

    How to Empower ISIS Opponents on Twitter

    ISIS supporters on average produce 50 percent more tweets per day than ISIS opponents. It's critical to empower ISIS opponents on Twitter by drawing on lessons from the marketing industry.

    Apr 21, 2017