Islamic State & Predecessor Groups
This is the gateway to resources, research, and analysis the Combating Terrorism Center has produced over the last decade about the Islamic State, also referred to as the Islamic State of Iraq and al Sham (ISIS) and Da`ish, and its predecessor groups (al-Tawhid wa-al-Jihad, al-Qa`ida in Mesopotamia (AQI), Majlis Shura al-Mujahidin, Hilf al-Muttayibin and the Islamic State of Iraq (ISI)).
Additional CTC research and analysis about factors shaping the conflict in Iraq and Syria is also included. These resources contextualize the development of the Islamic State. Resources are organized into five categories: major reports, CTC Sentinel articles, CTC Perspectives, CTC commentary about the early development of AQI, and declassified primary sources produced by AQI, ISI, and other militant groups in Iraq.
Sentinel Articles
February 19, 2026
Crime and Punishment: How International Cooperation Led to the Landmark Conviction of Two Islamic State Brothers in Portugal
February 28, 2025
Teenage Terrorists and the Digital Ecosystem of the Islamic State
January 31, 2025
The August 2024 Taylor Swift Vienna Concert Plot
August 13, 2024
The Financial Future of the Islamic State
June 28, 2024
The Threat Matrix Facing the Paris Olympics
May 30, 2024
