Stephen Tankel (@StephenTankel) is an associate professor in the School of International Service at American University and an adjunct senior fellow at the Center for a New American Security. An expert on terrorism, counterterrorism, security assistance and cooperation, and security and military affairs in South Asia, Dr. Tankel frequently advises U.S. policymakers and members of the Intelligence Community on these issues. He previously served as a Senior Advisor at the Department of Defense. Dr. Tankel has conducted field research in Afghanistan, Algeria, Bangladesh, India, Kenya, Lebanon, Pakistan, and the Balkans. He is the author of numerous works, including With Us And Against Us: How America’s Partners Help and Hinder the War on Terror, and Storming the World Stage: The Story of Lashkar-e-Taiba. Dr. Tankel is also a senior editor at War on the Rocks, associate editor of the Texas National Security Review, on the editorial boards of Terrorism and Political Violence, and Studies in Conflict and Terrorism, and a frequent media commentator. He received is MSc in Global Politics from the London School of Economics and his PhD in War Studies from King’s College London.