Defense and Security
New actors in conflict, advancements in technology and new modes of warfare are changing our understanding of national security and defense capabilities in the evolving context of the 21st century. Brookings scholars examine the future of U.S. defense needs and priorities, the challenges of military transformation and new defense strategies.
A man stands on rubble at a site hit by what activists said was a barrel bomb dropped by forces of Syria's President Bashar al-Assad in the Bab al-Nasr neighbourhood of Aleppo (REUTERS/Abdalrhman Ismail).
American boots needed in Syria
May 20, 2015, Michael E. O'Hanlon
Michael O'Hanlon examines the current situation in Syria and neighboring Iraq. He concludes the time has come for the U.S. military to be in on the ground in Syria before the situation gets worse.
U.S. Military Affairs
U.S. Defense Budget
U.S. Defense Strategy
Defense and Security
Opinion | Al-Monitor
May 11, 2015, Bruce Riedel
May 7, 2015, Steven Pifer
May 2015, Lynn Kuok
May 5, 2015, Jeremy Shapiro
Opinion | The National Interest
April 16, 2015, Michael E. O'Hanlon
April 13, 2015
April 13, 2015, Bruce Riedel
April 3, 2015, Bruce Riedel
Opinion | Miami Herald
March 25, 2015, Robert N. Hein and Jason Tama
March 24, 2015, Brendan Orino
View All Research on Defense ›Show 10 More
You have not selected any newsletters.
Michael E. O'Hanlon
Co-Director, Center for 21st Century Security and Intelligence
Director of Research, Foreign Policy
Nonresident Senior Fellow, Foreign Policy, Center for 21st Century Security and Intelligence, Arms Control and Non-Proliferation Initiative
Pavel K. Baev
Nonresident Senior Fellow, Foreign Policy, Center on the United States and Europe
The Brookings Institution is a private nonprofit organization devoted to independent research and innovative policy solutions. For nearly 100 years, Brookings has analyzed current and emerging issues and produced new ideas that matter—for the nation and the world.
1775 Massachusetts Ave, NW,
Washington, DC 20036
© 2015 The Brookings Institution