In this great interview from New Books in National Security, Omar Ashour, author of How ISIS Fights: Military Tactics in Iraq, Syria, Libya and Egypt, talks to host Jeffrey Bristol about his work.
They discuss the origin of Ashour’s study and how ISIS franchises spread. The interview also explores the potential threats of ISIS as an international terrorist organisation and why it grew as quickly as it did. They also look ahead to what the future might hold for ISIS.
Find out more about the interview over on New Books Network, or listen below:

Ben Connable, "Ground Combat: Puncturing the Myths of Modern War" (Georgetown UP, 2025) – New Books in National Security
- Ben Connable, "Ground Combat: Puncturing the Myths of Modern War" (Georgetown UP, 2025)
- Daniel Lomas, "The Secret History of UK Security Vetting from 1909 to the Present" (Bloomsbury, 2025)
- Thomas Christian Bächle and Jascha Bareis eds., "The Realities of Autonomous Weapons (Bristol UP, 2025)
- Reid B. C. Pauly, "The Art of Coercion: Credible Threats and the Assurance Dilemma" (Cornell UP, 2025)
- Sergei Guriev and Daniel Treisman, "Spin Dictators: The Changing Face of Tyranny in the 21st Century" (Princeton UP, 2022)
About the Author

Omar Ashour is an Associate Professor of Security and Military Studies and the Founding Chair of the Critical Security Studies Programme at the Doha Institute for Graduate Studies. He is the author of How ISIS Fights: Military Tactics in Iraq, Syria, Libya and Egypt (Edinburgh University Press, 2021) as well as the editor of Bullets to Ballots: Collective De-Radicalisation of Armed Movements (Edinburgh University Press, 2021).