Daniel L. Byman
Byman in March 2012
Born	Daniel L. Byman 1967 (age 57–58) United States
Education	Amherst College (BA)
Alma mater	Massachusetts Institute of Technology (PhD)
Occupation	Political scientist
Employer	Georgetown University

Daniel L. Byman (born 1967^[1]) is an Americanpolitical scientist. His research focuses onterrorism,Counterterrorism and theMiddle East.^[2] Byman is currently a professor inGeorgetown University'sWalsh School of Foreign Service and director of Georgetown's security studies program^[3] He is a former Vice-Dean of the school.

Byman is Senior Advisor to theU.S. Department of State as part of the International Security Advisory Board, a senior fellow with the Transnational Threats Project at theCenter for Strategic and International Studies, and the Foreign Policy Editor forLawfare.^[4]

Byman played key roles in the post 9/11 intelligence committees and in many distinguished think tanks. He was a senior fellow at theCenter for Middle East Policy at theBrookings Institution.^[5] He was also the research director of the Center for Middle East Public Policy at theRAND Corporation.^[6]

He is also the lead course instructor for Georgetown'smassive open online course on Terrorism and Counter Terrorism.

Byman holds a BA fromAmherst College and a PhD fromMassachusetts Institute of Technology.^[7]

Byman was a professional staff member on both the9/11 Commission and theJoint 9/11 Inquiry staff of theHouse andSenate Intelligence Committees.

Early in his career, he served as an analyst for theU.S. government.^[8]

Byman's bookRoad Warriors: Foreign Fighters in the Armies of Jihad, published byOxford University Press in 2019, provides a sweeping history of the jihadist foreign fighter movement. He also authored the book,Al Qaeda, the Islamic State, and the Global Jihadist Movement: What Everyone Needs to Know, published byOxford University Press in 2015.^[9]

Byman's article inThe Atlantic entitled "Left Wing Terrorism is on the Rise" defined terrorism as "attacks or plots by a nonstate actor attempting to achieve a political end and exert a psychological influence on a broad population".^[10] With Riley McCabe, Byman analyzed 750 attacks and plots in the United States from 1994 through 2025, finding that 2025 was the first year in which far-left attacks outnumbered far-right attacks.^[10][11][12]

• Trends in Outside Support for Insurgent Movements. Rand Corporation. 2001.ISBN 978-0-8330-3052-8.
• Keeping the Peace: Lasting Solutions to Ethnic Conflicts. JHU Press. 2002.ISBN 978-0-8018-6804-7.
• Daniel Byman;Matthew Waxman (2002).The Dynamics of Coercion: American Foreign Policy and the Limits of Military Might. Cambridge University Press.ISBN 978-0-521-00780-1.
• Deadly Connections: States that Sponsor Terrorism. Cambridge University Press. 2005.ISBN 978-0-521-83973-0.
• Daniel Byman;Kenneth M. Pollack (2007).Things fall apart: containing the spillover from an Iraqi civil war. Brookings Institution Press.ISBN 978-0-8157-1379-1.
• A High Price:The Triumphs and Failures of Israeli Counterterrorism. Oxford University Press, US. 2011.ISBN 978-0-19-983174-6.^[13][14][15]
• "The Wobbling Red Line in Syria",op-ed, New YorkTimes. May 4, 2013. "Empty threats weaken America's credibility", regarding President Obama's "red line" comment onSyria's chemical weapons.
• Road Warriors: Foreign Fighters in the Armies of Jihad. Oxford University Press. 2019.ISBN 978-0-19-064651-6.
• Spreading hate: the global rise of white supremacist terrorism. New York, NY: Oxford University Press. 2022.ISBN 978-0-19-753761-9.OCLC 1306536004.

• Appearances onC-SPAN

• Living people
• American male writers
• Brookings Institution people
• American political scientists
• International security
• Peace and conflict scholars
• Writers on the Middle East
• Scholars of terrorism
• Walsh School of Foreign Service faculty
• Amherst College alumni
• Massachusetts Institute of Technology alumni
• People from Winona, Minnesota
• 1967 births
• Georgetown University faculty

• CS1 Czech-language sources (cs)
• Articles with short description
• Short description is different from Wikidata
• Articles with hCards
• People appearing on C-SPAN