Joshua Tallis, Ph.D.
Research Analyst


Joshua Tallis conducts research on national security topics for the Navy, with an emphasis on maritime security and irregular warfare, as well as technological innovation in naval warfare. His expertise includes threats active in the littorals, such as piracy, narcotics trafficking, and terrorism. Tallis has also conducted research for the Department of Homeland Security on topics such as counterterrorism, cyber-security, and critical infrastructure protection. Tallis maintains an interest in space policy as well.

Before joining CNA, Tallis was manager for research and analysis at Security Management International.

Tallis holds a Ph.D. in International Relations from the University of St. Andrews in Scotland, where he studied at the Centre for the Study of Terrorism and Political Violence, and a B.A. in Middle Eastern Studies from The George Washington University's Elliott School of International Affairs.


December 13, 2017

Joshua Tallis writes, "So, does terrorism work? Those looking for a straight yes or no will finish this book disappointed. Yet English succeeds in his ultimate goal of elucidating and demonstrating a more robust framework through which this debate can continue fruitfully."

Marine Corps University Journal (page 115): "Does Terrorism Work? A History. (Book Review)"

October 12, 2017

Joshua Tallis, Ryan Bauer and Lauren Frey write "To make this identification of tactics useful for practitioners at all levels of government, we mapped each tactic to the emergency preparedness framework."

Journal of Terrorism Research: "ISIL'S Battlefield Tactics and the Implications for Homeland Security and Preparedness"

March 31, 2017

The Maritime Executive quotes CNA analyst Joshua Tallis, Ph.D. in "Anti-Piracy Mission Deploys Surveillance Drones"

March 14, 2017

CIMSEC publishes "Is Somali Piracy Back?" by CNA analyst Joshua Tallis, Ph.D.

October 24, 2016

The National Interest publishes "The U.S. Navy in an Irregular Baltic Conflict: Seapower’s Role in Countering Russian Hybrid Warfare" by CNA analyst Joshua Tallis, Ph.D.