Thomas Donnelly, a defense and security policy analyst, is the co-director of the Marilyn Ware Center for Security Studies at AEI. He is the coauthor with Frederick W. Kagan of Lessons for a Long War: How America Can Win on New Battlefields (2010). Among his recent books are Ground Truth: The Future of U.S. Land Power (2008), coauthored with Frederick W. Kagan; Of Men and Materiel: The Crisis in Military Resources (2007), coedited with Gary J. Schmitt; The Military We Need (2005); and Operation Iraqi Freedom: A Strategic Assessment (2004). From 1995 to 1999, he was policy group director and a professional staff member for the House Committee on Armed Services. Mr. Donnelly also served as a member of the U.S.-China Economic and Security Review Commission. He is a former editor of Armed Forces Journal, Army Times, and Defense News.


  • Member, U.S.-China Economic and Security Review Commission, 2005-2006
  • Editor, Armed Forces Journal, 2005-2006
  • Director, Strategic Communications and Initiatives, Lockheed Martin Corporation, 2002
  • Deputy Executive Director, Project for the New American Century, 1999-2002
  • Director, Policy Group, 1996-99; Professional Staff Member, 1995, Committee on Armed Services, U.S. House of Representatives
  • Executive Editor, The National Interest, 1994-95
  • Editor, Army Times, 1987-93
  • Deputy Editor, Defense News, 1984-87


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