Giselle Donnelly is a resident fellow in defense and national security at the American Enterprise Institute (AEI), where she focuses on national security and military strategy, operations, programs, and defense budgets.

From 1995 to 1999, Ms. Donnelly served as a policy group director and professional staff member at the House Armed Services Committee. She has also served as a member of the US-China Economic and Security Review Commission, the editor of Armed Forces Journal and Army Times, and the deputy editor of Defense News.

Ms. Donnelly has testified before Congress and has been widely published in the popular press, including in The Wall Street Journal and The Weekly Standard. Her many books include “Lessons for a Long War: How America Can Win on New Battlefields”(AEI Press, 2010), coauthored with Frederick W. Kagan and others; “Ground Truth: The Future of U.S. Land Power”(AEI Press, 2008), coauthored with Frederick W. Kagan; “Of Men and Materiel: The Crisis in Military Resources”(AEI Press, 2007), coedited with Gary J. Schmitt; “The Military We Need: The Defense Requirements of the Bush Doctrine”(AEI Press, 2005); and “Operation Iraqi Freedom: A Strategic Assessment”(AEI Press, 2004). She is currently working on “Empire for Liberty: The British Roots of American Strategy-Making.”

Ms. Donnelly has a master of international public policy from the School of Advanced International Studies at Johns Hopkins University and a bachelor’s degree from Ithaca College.

Formerly Thomas Donnelly, Giselle Donnelly’s previous work can be found here.


  • US-China Economic and Security Review Commission: Member, 2005–06
  • Armed Forces Journal: Editor, 2005–06
  • Lockheed Martin Corporation: Director, Strategic Communications and Initiatives, 2002
  • Project for the New American Century: Deputy Executive Director, 1999–2002
  • Committee on Armed Services, US House of Representatives: Director, Policy Group, 1996–99; Professional Staff Member, 1995
  • The National Interest: Executive Editor, 1994–95
  • Army Times: Editor, 1987–93
  • Defense News: Deputy Editor, 1984–87


M.I.P.P., School of Advanced International Studies, Johns Hopkins University
B.A., Ithaca College