A Department of Homeland Security Emeritus Center of Excellence led by the University of Maryland

Terrorist Networks


Terrorist Networks

Project Title Investigators Project Period
Defense Advanced Research Projects Agency SIGMA+ Thomas Guarrieri, Marcus A. Boyd, Steve Sin July, 2018 to April, 2020
Developing Integrated Radiological and Nuclear Detection Architecture for the Interior and International Mission Space Steve Sin, Marcus A. Boyd September, 2016 to September, 2019
Divergent Dimensions of Radicalization Risk: Migration and Violent Extremism in Sabah Barnett S. Koven, Samuel D. Henkin September, 2019 to September, 2021
Expand the Transnational Illicit Trafficking (TransIT) Database Marcus A. Boyd January, 2019 to December, 2019
Failure Points in Smuggling Networks Brandon Behlendorf September, 2013 to March, 2015
Framing Global Salafi-Jihadist Messages in the West Peter Neumann July, 2012 to December, 2015
Global Terrorism Database (GTD) Erin Miller, Gary LaFree, Laura Dugan June, 2001 to October, 2022
Global Terrorism Database (GTD) Acceleration Erin Miller January, 2019 to January, 2020
ISIL: Branding, Leadership Culture and Lethal Attraction Gina Scott Ligon November, 2014
Mapping and Evaluating Online Salafi-Jihadism Arie Kruglanski, Jarret Brachman, Michele Gelfand July, 2012 to December, 2014
Martyrs without Borders: Iraq's Foreign Fighters and the Third Generation of Global Jihad Mohammed Hafez June, 2008 to May, 2011
Militant Islamist Networks in the West Jeffrey Bale July, 2005 to April, 2008
Radicalization Clusters? Geographic Concentrations of Violent Extremism and Terrorism in the United States Kathleen Smarick October, 2010 to December, 2011
Resources and Resilience: A Computational Model of Strategic Influence January, 2018 to June, 2018
Social Network Analysis for Combating Terrorist Networks Alan Neustadtl, R. Karl Rethemeyer, Victor Asal June, 2006 to June, 2009
START-Oxford University Press Book Series Laura Dugan, Anthony Lemieux, Gary Ackerman, Gary LaFree June, 2017 to December, 2024
Terrorism and Targeted Violence in the United States Erin Miller, Michael Jensen September, 2020 to January, 2022
The Ecology of Terrorist Organizations Jonathan Wilkenfeld, Victor Asal, Gary LaFree October, 2008 to December, 2012
The Mobilization Puzzle: How Individual, Group, and Situational Dynamics Produce Extremist Outcomes Gary LaFree, Michael Jensen January, 2020 to December, 2022
Two to Tango: Government and Terrorist Group Actions in Colombia Barnett S. Koven March, 2018 to June, 2018
U.S. Crime-Terror Nexus: Terrorist Networks & Trade Diversion Joshua Freilich, Steven Chermak, Roberta Belli July, 2012 to December, 2013
Updates to the Big, Allied, and Dangerous (BAAD) Dataset Victor Asal January, 2019 to December, 2019
Updates to the Leadership of the Extreme and Dangerous for Innovative Results (LEADIR) Dataset Gina Scott Ligon January, 2019 to December, 2019
Where the Extremes May Touch: The Potential for Collaboration Between Islamist, Right- and Left-Wing Extremists Gary Ackerman, Jeffrey Bale July, 2005 to September, 2009
Project Title Publication Date START Authors Publication Type
Al Qaeda's Post-9/11 Evolution: An Assessment November 2011 Moghadam, Assaf; Braniff, William Book Chapter
Al-Qaida and Al-Shabaab: A Resilient Alliance January 2019 Bacon, Tricia Book Chapter
Alliance Hubs: Focal Points in the International Terrorist Landscape May 2014 Bacon, Tricia Journal Article
An Analysis of Violent Nonstate Actor Organizational Lethality and Network Co-Evoluation in the Middle East and North Africa February 2016 Young, Joseph; Rethemeyer, R. Karl; Asal, Victor START Reports
Applying Social Network Analysis to Terrorist Financing May 2018 Leuprecht, Christian Book Chapter
Big Allied and Dangerous (BAAD) September 2013 Rethemeyer, R. Karl; Asal, Victor Project Fact Sheet
Big, Allied And Dangerous (BAAD) Fact Sheet October 2015 Rethemeyer, R. Karl; Asal, Victor Project Fact Sheet
Boko Haram: An Assessment of Strengths, Vulnerabilities, and Policy Options January 2015 Pate, Amy START Reports
Building Terrorism from Social Ties: The Dark Side of Social Capital February 2015 Rethemeyer, R. Karl; Asal, Victor Journal Article
Catch Them Coming and Going: Probabilistic Pathway Projection to Counter Foreign Fighters March 2016 Boyd, Marcus A. START Reports
Changing Organizational Structures of Jihadist Networks in the Netherlands October 2016 Freilich, Joshua; Chermak, Steven Journal Article
Cigarette smuggling and terrorism financing November 2013 Freilich, Joshua; Chermak, Steven Book Chapter
Comparative configurational analysis as a two-mode network problem: A study of terrorist group engagement in the drug trade May 2013 Rethemeyer, R. Karl; Breiger, Ronald Journal Article
Contextualizing Disengagement: How Exit Barriers Shape the Pathways Out of Far-Right Extremism in the United States May 2020 Yates, Elizabeth; Jensen, Michael; James, Patrick Journal Article
Counterterrorism Net Assessment Data Structure April 2020 Koven, Barnett S.; Lindquist, Katy; Erdemandi, Max Project Fact Sheet
Crime-Terror Alliances and the State: Ethnonationalist and Islamist Challenges to Regional Security January 2013 Mincheva, Lyubov Book
Cross-Milieu Terrorist Collaboration: Using Game Theory to Assess the Risk of a Novel Threat April 2016 Ackerman, Gary; Zhuang, Jun Journal Article
Cultivating Trust and Perceptions of Source Credibility in Online Counternarratives Intended to Reduce Support for Terrorism April 2018 Braddock, Kurt Journal Article
Cumulative Disruptions: Interdependency and Commitment Escalation as Mechanisms of Illicit Network Failure September 2020 Behlendorf, Brandon Journal Article
Cut from the Same Cloth? A Comparative Study of Domestic Extremists and Gang Members in the United States May 2017 Pyrooz, David C.; LaFree, Gary; James, Patrick; Decker, Scott H. Journal Article
Divergent Dimensions of Radicalization Risk: Migration and Violent Extremism in Sabah December 2021 Report
Divergent Dimensions of Radicalization Risk: Migration and Violent Extremism in Sabah, Malaysia December 2020 Henkin, Samuel D. START Reports
Do 90 Percent of Terrorist Groups Last Less Than a Year? Updating the Conventional Wisdom September 2017 Phillips, Brian Journal Article
Do Machines Replicate Humans? Toward a Unified Understanding of Radicalizing Content on the Open Social Web September 2019 Ligon, Gina Scott Journal Article
Doing Good while Killing: Why Some Insurgent Groups Provide Community Services May 2020 Flanigan, Shawn; Asal, Victor Journal Article
Dynamic Dimensions of Radicalization and Violent Extremism in Sabah, Malaysia December 2021 Henkin, Samuel D. Report
Enemies with Benefits? Violent Rivalry and Terrorist Group Longevity January 2015 Phillips, Brian Journal Article
Exploring the Crime-Terror Nexus in the United States: A Social Network Analysis of a Hezbollah Network Involved in Trade Diversion October 2015 Freilich, Joshua; Belli, Roberta; Chermak, Steven Journal Article
Extremist Group/Movement Affiliations of the January 6 Capitol Rioters May 2022 Jensen, Michael Map
Fratricidal Rebels: Ideological Extremity and Warring Factionalism in Civil Wars April 2020 Hafez, Mohammed Journal Article
Fratricide in Rebel Movements: A Network Analysis of Syrian Militant Infighting January 2019 Hafez, Mohammed Journal Article
Gangs, Terrorism, and Radicalization October 2011 Pyrooz, David C.; Decker, Scott H. Journal Article
Headhunting Among Extremist Organizations: An Empirical Assessment of Talent Spotting April 2018 Ligon, Gina Scott Journal Article
Hezbollah's Social Jihad: Nonprofits as Resistance Organizations June 2009 Flanigan, Shawn Journal Article
Hizballah as a Social Movement Organization: A Framing Approach November 2009 Karagiannis, Emmanuel Journal Article
How “Alone” are Lone-Actors? Exploring the Ideological, Signaling, and Support Networks of Lone-Actor Terrorists October 2018 Hofmann, David Journal Article
Hurdles to International Terrorist Alliances: Lessons from Al Qaeda's Experience February 2015 Bacon, Tricia Journal Article
Impact of Perceived Peer Attitudes and Social Network Diversity on Violent Extremist Intentions September 2020 Lemieux, Anthony Journal Article
Insurgencies as Networks of Event Orderings June 2018 Breiger, Ronald Journal Article
Is Islamist Terrorism More Dangerous?: An Empirical Study of Group Ideology, Organization, and Goal Structure January 2009 Piazza, James A. Journal Article
Is the Enemy of My Enemy My Friend? How Terrorist Groups Select Partners January 2018 Bacon, Tricia Journal Article
ISIL: Branding, Leadership Culture and Lethal Attraction November 2014 Ligon, Gina Scott; Simi, Peter START Reports
ISIS: Its History, Ideology, and Psychology April 2018 Kruglanski, Arie Book Chapter
Islamism and Totalitarianism June 2009 Bale, Jeffrey Journal Article
Islamist Terrorism, Diaspora Links and Casualty Rates October 2019 LaFree, Gary; Piazza, James A. Journal Article
Lethal Combinations: Studying the Structure of Terrorist Networks September 2017 Rethemeyer, R. Karl; Asal, Victor Book Chapter
Lethal Connections: The Determinants of Network Connections in the Provisional Irish Republican Army, 1970–1998 January 2014 Rethemeyer, R. Karl; Asal, Victor Journal Article
Locating Al Qaeda's Center of Gravity: The Role of Middle Managers October 2011 Neumann, Peter Journal Article
Loners, Colleagues, or Peers? Assessing the Social Organization of Radicalization April 2018 Freilich, Joshua; Chermak, Steven Journal Article
Mapping and Deterring Violent Extremist Networks in North-West Africa April 2015 Leuprecht, Christian Journal Article
Mapping Today's Jihadi Landscape and Threat May 2018 Moghadam, Assaf Journal Article
Marriage of Convenience: The Evolution of Iran and al-Qa'ida's Tactical Cooperation April 2017 Moghadam, Assaf Journal Article
Mobilizing on the Extreme Right: Germany, Italy, and the United States January 2012 della Porta, Donatella; Caiani, Manuela Book
Momin Khawaja: Mechanisms of Radicalization August 2016 McCauley, Clark; Moskalenko, Sophia START Reports
Networks as strategic repertoires: Functional differentiation among Al-Shabaab terror cells May 2013 Leuprecht, Christian Journal Article
Networks of Cooperation: Rebel Alliances in Fragmented Civil Wars February 2019 Hafez, Mohammed Journal Article
Networks, Power, and the Effects of Legitimacy in Contentious Politics January 2020 Milward, H. Brinton Journal Article
Nexus of Global Jihad: Understanding Cooperation Among Terrorist Actors May 2017 Moghadam, Assaf Book
NGO Interventions: Influences on Terrorist Activity August 2016 Hodwitz, Omi Journal Article
On Classifying Terrorism: A Potential Contribution of Cluster Analysis for Academics and Policymakers December 2007 Chenoweth, Erica Journal Article
Online Networks of the Italian and German Extreme Right: An Explorative Study with Social Network Analysis February 2009 Caiani, Manuela Journal Article
Only the Bad Die Young: The Correlates of Organizational Death for Far-Right Extremist Groups December 2015 Freilich, Joshua; Chermak, Steven Journal Article
Political Fragmentation and Alliances among Armed Non-state Actors in North and Western Africa (1997–2014) September 2017 Leuprecht, Christian Journal Article
Probabilistic Pathway Projection to Counter Foreign Fighters April 2016 Boyd, Marcus A. Research Brief
Psychology Not Theology: Overcoming ISIS' Secret Appeal October 2014 Kruglanski, Arie Op-ed
Rebel Group Attrition and Reversion to Violence: Micro-Level Evidence from Syria January 2020 Mironova, Vera Journal Article
Recruitment and Selection in Violent Extremist Organizations: Exploring What Industrial and Organizational Psychology Might Contribute April 2017 Ligon, Gina Scott Journal Article
Researching Terrorist Networks April 2006 Rethemeyer, R. Karl; Asal, Victor Journal Article
Social Network Analysis of German Foreign Fighters in Syria and Iraq February 2017 Hafez, Mohammed Journal Article
Spotting the Threat July 2014 Neumann, Peter Journal Article
Strategic Terrorism: The Framework and Its Fallacies January 2007 Neumann, Peter Journal Article
Terrorism and Conspiracy Theories: A View from the 3N Model of Radicalization June 2022 Kruglanski, Arie Journal Article
Terrorism and the North Caucasus: An Overview April 2013 Johns, Mila Background Report
Terrorism as Transnational Advocacy: An Organizational and Tactical Examination January 2007 Asal, Victor Journal Article
Terrorism, Radicalization and De-radicalization June 2016 Kruglanski, Arie Journal Article
Terrorist Group Cooperation and Longevity June 2014 Phillips, Brian Journal Article
Terrorist Group Rivalries and Alliances: Testing Competing Explanations August 2019 Phillips, Brian Journal Article
Terrorist Group Survival as a Measure of Effectiveness June 2018 Phillips, Brian Book Chapter
The Nature of the Beast: Organizational Structures and the Lethality of Terrorist Attacks April 2008 Rethemeyer, R. Karl; Asal, Victor Journal Article
The Nexus between Terrorism and U.S. Product Counterfeiting July 2014 Sullivan, Brandon; Freilich, Joshua; Chermak, Steven Report
The Rise and Endurance of Radical Right Movements September 2019 Caiani, Manuela Journal Article
The Social Psychological Makings of a Terrorist February 2018 Kruglanski, Arie Journal Article
The Strategy of Terrorism: How it Works, and Why it Fails December 2007 Neumann, Peter Book
The Three N Approach to Strategies for United States Government Information Operations May 2021 Kruglanski, Arie White Paper
The Three Percenters: A Look Inside an Anti-Government Militia March 2021 Beutel, Alejandro Report
Towards Global Jihadism: Al-Qaeda's Strategic, Ideological and Structural Adaptations since 9/11 June 2012 Moghadam, Assaf; Braniff, William Journal Article
Understanding Recruitment to Organized Crime and Terrorism June 2020 Weisburd, David Book
Understanding Terrorism and Counter-Terrorism November 2017 Singh, Rashmi Book
Unholy Alliances: Evidence on Linkages between Trans-State Terrorism and Crime Networks: The Case of Bosnia June 2010 Mincheva, Lyubov; Gurr, Ted Robert Book Chapter
Western Muslims Volunteering to fight in Syria and Iraq: Why do they go, and what should we do? July 2015 McCauley, Clark; Moskalenko, Sophia Journal Article
Why Terrorist Groups Form International Alliances May 2018 Bacon, Tricia Book
With Friends Like These…Why Terrorist Organizations Ally January 2016 Ackerman, Gary; Rethemeyer, R. Karl; Asal, Victor Journal Article
Women in the White Supremacist Movement July 2017 Yates, Elizabeth Book Chapter
Women Too: Explaining Gender Ideologies of Ethnopolitical Organizations May 2020 Asal, Victor Journal Article
’Unholy Alliances’: How Transnational Terrorists and Crime Make Common Cause November 2010 Mincheva, Lyubov; Gurr, Ted Robert Book Chapter
Dagher discusses ISIL in Iraq and new public opinion data
Database spotlight: Big Allied and Dangerous (BAAD)
Database Spotlight: Muslim Public Opinion and Public Opinion in the Islamic World on Terrorism, al Qaeda and U.S. Policies
Discussion Point: The Prospective Military Power of Al Qaeda Affiliated Groups in the Syrian Conflict
Financing terrorism through trade diversion
Have you seen it yet? START Research Review
Hegghammer explains variation in western jihadists
LaFree Discusses Terrorism Myths and Realities
LaFree speaks at National Institute of Justice conference
Leading terrorism expert discusses mobilization of women into terrorist networks
New database provides insights into terrorism countermeasures
New editor will take on post for START-Oxford University Press book series
New Research Brief Released: The Use of Violence by Ethnopolitical Organizations in the Middle East
New START model forecasts the flow of foreign fighters
New study examines FARC’s development of narco-submarines
New study examines terrorism in Indonesia, the Philippines and Thailand
New study shows alliances and not religious ideology are key to forecasting CBRN pursuit
Press Release: START Panel Addresses Key Questions in Terrorism
Rassler delves into the intricacies of the Haqqani Nexus
Remittances and the financing of terrorism in Sub-Saharan Africa
Research Roundtable features expert on policing terrorism
Research Roundtable details the patterns of terrorism worldwide
Secretary Ridge announces creation of terrorism center
START Announces 2009 Curriculum Development Grant Recipients
START Announces 2011-2012 Terrorism Research Award Participants
START Announces Fellowships for 2005-06
START Assesses Impact of 9/11
START hosts virtual book talk on “Insurgent Terrorism”
START investigator and former TRA recipient publish book on the mobilization of right-wing extremism
START Investigators Participate in 2011 American Sociological Association Annual Conference
START launches new tool for counterterrorism community
START Newsletter: US beliefs before, after Boston bombings; Terrorist targeting of civilians; Graduate Certificate in Terrorism Analysis
START releases new data collections
START Research Brief: Al-Shabaab's use of Twitter
START research informs Senate report on Chesser
START researchers awarded top honors for applying marketing framework to violent groups
START Researchers Featured in Journal of Homeland Security
START Researchers Present at American Political Science Association Annual Conference
START Response to Death of bin Laden
START seeking 2014 Outstanding Article Award nominations
START Symposium showcases impactful research, datasets
START welcomes visiting scholar
Summer courses for credit through START
Taken to extremes: Faculty Q&A with Michael Jensen
Terrorism studies graduate certificate application deadline is quickly approaching
Terrorism Studies Minor information sessions
Top-ranked criminology journal features START research
UMD Report: Conspiracy theories fueled more terror attacks in 2020
‘The Three Pillars’ book tour offers insight to international governments
Image Title Job Title Institution
Erin MIller Erin Miller

GTD Program Manager, START

University of Maryland
Gary Ackerman Gary Ackerman

Associate Professor, SUNY Albany

University at Albany, State University of New York
Gary LaFree

Founding Director, START; Chair, Department of Criminology and Criminal Justice

University of Maryland
Kurt Braddock

Assistant Professor, American University

American University
Marcus A. Boyd

Geospatial Research Unit (GRU) Director, START

Director of Graduate Studies, START

University of Maryland
Michael Jensen

Senior Researcher, START

University of Maryland
Michelle Jacome Michelle Jacome

Operations Officer on International Finance Cooperation at the World Bank

Peter Simi

Associate Professor, Chapman University

Director, Earl Babbie Research Center

Chapman University
R. Karl Rethemeyer R. Karl Rethemeyer

Associate Professor of Public Administration & Policy

University at Albany, State University of New York
Samuel D. Henkin

Geospatial Research Unit (GRU) Researcher, START

University of Maryland
Sheehan Kane

Researcher/Data Collection Manager, START

University of Maryland
Steve Sin

Director, Unconventional Weapons and Technology (UWT)

Subject Matter Expert Instructor, National Center for Security & Preparedness

University of Maryland
Thomas Guarrieri

Director of Undergraduate Studies

Assistant Research Scientist, Unconventional Weapons & Technology (UWT) Division, START

University of Maryland
Victor Asal

Associate Professor of Political Science and Chair of Public Administration

University at Albany, State University of New York

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