Terrorism Threat Assessment


In light of the global increase in the number and lethality of terrorist attacks, it has become imperative that nations, states, and private citizens become more involved in a strategic vision to recognize, prepare for, and — if possible — prevent such events. RAND research and analysis has provided policymakers with objective guidance and recommendations to improve preparedness, international collaboration, response, and recovery to this global threat.

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  • A passerby pauses near a makeshift memorial with U.S. and French flags outside the French embassy in Washington, November 16, 2015


    What the Paris Attacks Mean for U.S. Strategy in Syria and Homeland Security

    Events in the Middle East and Europe have direct implications for U.S. homeland security. And the attacks in Paris have increased pressure to step up the fight in Syria and Iraq. But Americans should consider the threat in context, and adjustments to U.S. strategy in Syria should only be a matter of degrees.

    Nov 19, 2015

  • Migrants walk toward the Austrian border town of Spielfeld, in Sentilj, Slovenia, November 18, 2015


    The Syrian Refugee Crisis and U.S. National Security

    America has a long tradition of offering protection to refugees, and the threat from refugees has historically been relatively low. However, the government should continue to reassess its refugee program and ensure that it safeguards national security.

    Nov 19, 2015

  • Islamic State fighters take part in a military parade along the streets of northern Raqqa province, Syria, June 30, 2014


    ISIS Will Become More Deadly Before It Dies

    The lesson with ISIS is straightforward. Western populations should be prepared for an upsurge in violence if ISIS continues to lose territory. There has already been a growth in attacks and plots across the West with operational or inspirational ties to ISIS.

    Nov 18, 2015

  • A tank of the Syrian National Army in the outskirts of Damascus on September 21, 2013


    The Dynamics of the Conflicts in Syria and Iraq and the Threat Posed by Homegrown Terrorists and Returning Western Fighters

    The fighting in Iraq and Syria is likely to continue. How will the dynamics of these conflicts shape the region and events beyond? And what threat do Westerners who've joined jihadists on these battlefields and homegrown terrorists pose to the U.S. homeland?

    Nov 18, 2015

  • Prisoner wearing handcuffs in a courtroom


    What's Next on the Convicted Terrorist's Timeline?

    As inmates near the end of their sentences for terrorism-related offenses, and with some individuals already freed, it's time to explore what considerations may be necessary.

    Nov 4, 2015

  • Members of the Kurdish peshmerga forces detain a man suspected of having links to the Islamic State, on the outskirts of Kirkuk March 15, 2015


    Any Review of Syria and Iraq Strategy Needs Realistic Reappraisal

    Since the American-led coalition bombing campaign began a year ago, ISIS has suffered some military setbacks and lost territory, but it also has been able to capture several more key cities in Iraq and Syria, and, despite the bombing, continues to attract a large number of foreign fighters.

    Sep 28, 2015

  • Tunisian soldiers and police patrol near Algeria's border in Kasserine, Tunisia July 4, 2015 after an Islamist militant attack on a beach hotel that killed 38 foreigners


    Algeria: The Bastion of North Africa

    Algeria could be a key regional partner for the United States and France in security and counterterrorism efforts against Al Qaeda and the Islamic State. It has a clear interest in quelling the threat posed by regional jihadists and it has local knowledge that could be helpful to U.S. counterterrorism efforts.

    Aug 11, 2015

  • Firemen work around the World Trade Center after both towers were attacked by terrorists on September 11, 2001


    The 1970s and the Birth of Contemporary Terrorism

    While terrorism worldwide has increased over the past four decades — and the threat of terrorism continues to dominate Americans' fears — the 14 years since 9/11 have been tranquil on the home front compared to the violent 1970s.

    Jul 30, 2015

  • A Syrian refugee shows his passport after he and others were rescued by a Greek coast guard patrol boat, May 29, 2015


    Admitting Syrian Refugees: The Intelligence Void and the Emerging Homeland Security Threat

    The deeply intertwined wars in Syria and Iraq continue to impact U.S. national security. Based on threats posed by a number of terrorist groups in the region, it's important to examine potential risks from increased refugee flows and ensure that the U.S. refugee program safeguards national security.

    Jun 24, 2015

  • A Tunisian holds up a flag during celebrations marking the fourth anniversary of Tunisia's revolution, Tunis, January 14, 2015


    Tunisia in the Crosshairs

    The open-ended nature of the Islamic State group's threat against Tunisair suggests that it intends to target Tunisia for the long haul. The United States should counter the threats with steadfast and sustained cooperation and assistance.

    Jun 22, 2015

  • An Afghan border policeman escorts a detained suspected Taliban fighter near Walli Was in Paktika province near the border with Pakistan November 5, 2012


    Expanding the Caliphate

    ISIS in South Asia, which it calls the Islamic State of Khorasan, is larger than most recognize, boasting between several hundred and several thousand fighters. But for now, it is closer to a loose affiliate than a direct arm of the organization.

    Jun 12, 2015

  • Smoke rises after what activists said were clashes with Islamic State fighters in Soran Azaz, Aleppo countryside June 1, 2015


    Islamic State's Global Expansion

    The radical Islamist group, also known as ISIS or ISIL, is now expanding in roughly a dozen countries across Africa, the Middle East, and Asia by exploiting local grievances, doling out money, and leveraging its battlefield successes.

    Jun 4, 2015

  • People run for cover after an explosion in Jalalabad April 18, 2015


    Has Islamic State Entered Afghanistan?

    The bulk of the Islamic State of Khorasan is thought to be in Pakistan, but the group is trying to make inroads into Afghanistan. That said, the group's actual ability to operate in Afghanistan appears rather limited.

    May 4, 2015

  • Testimony

    There Will Be Battles in the Heart of Your Abode: The Threat Posed by Foreign Fighters Returning From Syria and Iraq: Addendum

    Document submitted on April 17, 2015 as an addendum to testimony presented before the Senate Homeland Security and Governmental Affairs Committee on March 12, 2015.

    Apr 17, 2015

  • U.S. Senior Master Sgt. Leonard discusses cargo pallet inspection procedures with East Africa air force members during African Partnership Flight-Djibouti February 10, 2015


    Djibouti: Outpost of Stability in an Unstable Region

    The collaborative role being played by the United States and Djibouti represents the kind of partnerships that are now required in the battle against terrorism, because little-known places like Djibouti are one arena where the battle could be won or lost.

    Apr 10, 2015

  • A balloonist fires the burners of his hot air balloon during the Tunisian Balloon Festival in Hammamet March 22, 2015


    Tunisia Could Be a Model for What Works in the Mideast

    Tunisia has a shot at showing that a different model in the region can succeed, a model of inclusion, tolerance, and economic prosperity. It has a lot of work ahead of it, but the vision is there.

    Mar 24, 2015

  • Militant Islamist fighters on a tank take part in a military parade along the streets of northern Raqqa province, Syria, June 30, 2014


    The Continuing Lure of Violent Jihad

    As the civil wars in Syria and Iraq continue, so does the terrorist threat emanating from these conflicts. Two galaxies of jihadist terrorists in the region pose a credible danger to the U.S. homeland: al Qaeda and its affiliates and ISIL. But the most likely threat comes from homegrown terrorists.

    Mar 24, 2015

  • Spanish police arresting a woman suspected of recruiting women to go to Syria and Iraq to support Islamic State insurgents


    The Allure of ISIS for Young Recruits

    Poverty and oppression may explain why people in some countries embrace violent extremism, but it does not account for the flow of Western volunteers or the dreamy allure of fighting for a faraway cause. Biographies of those who have reached out to participate in jihad suggest a variety of motives, including alienation, personal crises, dissatisfaction with empty spiritual lives, and adolescent rebellion.

    Mar 20, 2015

  • Testimony

    Containing Middle East Terror: Measures to Reduce the Threat Posed By Foreign Fighters Returning from Syria and Iraq

    Testimony presented before the House Homeland Security Committee, Subcommittee on Border and Maritime Security on March 17, 2015.

    Mar 17, 2015

  • Militant Islamist fighters ride horses in a military parade along the streets of Syria's northern Raqqa province, June 30, 2014


    The Threat Posed by Foreign Fighters Returning from Syria and Iraq

    An estimated 3,400 foreign fighters have come from Europe and other Western countries to join jihadist fronts in Syria and Iraq. What is the threat posed by these Western fighters? And how can the U.S. better identify and intercept returning foreign fighters from countries covered by the Visa Waiver Program?

    Mar 12, 2015