آرون وای. زیلن

The offensive occurred amid a deteriorating security situation across the Sahel that will require creative U.S. responses.

This multimedia tool -- easily the most comprehensive of its kind -- provides a novel, accessible way to understand the Islamic State’s global reach and activities. Beyond a traditional focus on attacks, find content from Islamic State media, designations, and legal cases.

How did Tunisia, a democratic bright spot of the Arab uprisings with very little history of terrorist violence within its borders before 2011, become one of the largest sources of foreign fighters for the Islamic State? This groundbreaking book presents the first history of the Tunisian jihadi movement and challenges simplified views of jihadism's appeal and success.

The Syria-based group now functions more like a government than a nonstate actor, portending a reorientation for the larger jihadist movement.

Even as U.S. policymakers must stay focused on the Assad regime’s culpability, they also face a complex web of power dynamics in which Russia, Turkey, Iran, Israel, and other actors are attempting to secure their various interests.

Many inhabitants of the al-Hol camp still profess loyalty to the jihadist group and have sought to impose a fundamentalist lifestyle on their fellow residents.

Over the past few years, the influx of Tunisian fighters to Iraq and Syria has rendered Tunisia practically synonymous with

This new study offers a deeper understanding of the foreign-fighter phenomenon, its evolution, and its potential trajectories.