"The Death of bin Laden, and the Future of Al-Qaeda." In The Dangerous Landscape, 221-222., 2013.

"Foreword." In The Dangerous Landscape., 2013.

"New Blood: The Recruitment of Terrorists." In The Dangerous Landscape, 1-18., 2013.

"The Renaissance of Insurgency and Counter-Insurgency:Examining Twenty-First Century Insurgencies and Government Responses." Connections: The Quarterly Journal 7, no. 1 (2008): 154-166.