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 woman wearing a national flower crown looks back as she attends a pro-Ukrainian rally in Luhansk, eastern Ukraine (REUTERS/Shamil Zhumatov).
Can Moscow Step Back From Ukraine?
April 14, 2014, Steven Pifer
In an interview with the Council on Foreign Relations, Steven Pifer discusses the challenges that face the interim Ukrainian government and the threat that Russia poses to Ukraine's stability and unity.
U.S. Military Affairs
U.S. Defense Budget
U.S. Defense Strategy
The Federal Budget
A Presidential Briefing Book
2014, Ted Piccone, Steven Pifer and Thomas Wright, eds.
2013, David L. Goldwyn and Jan Kalicki, eds.
Maintaining Military Preeminence while Cutting the Defense Budget
2013, Michael E. O'Hanlon
2011, Michael E. O'Hanlon
2011, Justin Vaïsse
2010, Michael E. O'Hanlon
Defense and Security Spending Under Barack Obama
2009, Michael E. O'Hanlon
Foreign Policy Troubles at the Outset of Presidential Power
2008, James B. Steinberg and Kurt M. Campbell
The Path to Security for America and the World
2007, Philip H. Gordon
2006, James B. Steinberg, Jeremy Shapiro, Michael d'Arcy, Michael E. O'Hanlon and Peter R. Orszag
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12:30 PM - 1:30 PM EDT
Michael E. O'Hanlon
Director of Research, Foreign Policy
Senior Fellow, Foreign Policy, Center for 21st Century Security and Intelligence
Peter W. Singer
Director, Center for 21st Century Security and Intelligence
Senior Fellow, Foreign Policy
Nonresident Senior Fellow, Foreign Policy, Center for 21st Century Security and Intelligence, Arms Control and Non-Proliferation Initiative
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