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Defense and Security

Analyzing aspects of defense and security, including acquisition and resources, homeland security, strategy, reconstruction, nuclear issues, and terrorism.

CSIS is a leader in researching, analyzing and identifying defense and security threats around the globe. CSIS programs study a wide range of Defense and Security issues as well as the evolution of past, present, and future defense and security policy worldwide. This research is led by the International Security Program (ISP), which houses Defense Budget Analysis, the Defense-Industrial Initiatives Group (DIIG), the Missile Defense Project, the Project on Nuclear Issues (PONI), Civil-Military Relations, the Aerospace Security Project, the Risk and Foresight Group, Seven Revolutions, the Transnational Threats Project, the Gray Zone Project, the Cooperative Defense Project, and Defense 360.

Find the latest research from our scholars and CSIS events on this topic below.

Defense and Security

  • Counterterrorism and Homeland Security
  • Defense Budget
  • Defense Industry, Acquisition, and Innovation
  • Defense Strategy and Capabilities
  • Geopolitics and International Security
  • Long-Term Futures
  • Missile Defense
  • Space
  • Weapons of Mass Destruction Proliferation
Find Additional Content

Featured

Critical Questions
Cultivating a Defense Department Workforce for the Digital Era
By Lindsey R. Sheppard
January 26, 2021
Critical Questions
Escaping the Graveyard of Empires? U.S. Options in Afghanistan
By Seth G. Jones
January 26, 2021
Commentary
Iran Will Still Be a Slog
By Jon B. Alterman
January 25, 2021

Most Recent

Upcoming Event
Online Event: Surprise and Innovative Operational Concepts: Gaining Competitive Advantage in Great Power Conflicts
January 29, 2021
Critical Questions
Cultivating a Defense Department Workforce for the Digital Era
By Lindsey R. Sheppard
January 26, 2021
Critical Questions
Escaping the Graveyard of Empires? U.S. Options in Afghanistan
By Seth G. Jones
January 26, 2021
Podcast Episode
Public Opinion and the Chessboard: From the U.S. and Abroad
By Michael J. Green
In The Asia Chessboard
January 25, 2021
Commentary
Iran Will Still Be a Slog
By Jon B. Alterman
January 25, 2021
Critical Questions
Restore Trust in National Security Institutions
By Suzanne Spaulding, Devi Nair
January 22, 2021
Report
CSIS European Trilateral Track 2 Nuclear Dialogues
By Rebecca Hersman
January 22, 2021
On Demand Event
Online Event: Korea Chair Capital Cable #18
January 22, 2021
View all content associated with this topic

Associated Programs and Projects

International Security Program
Defense 360
Burke Chair in Strategy
Gray Zone Project
View all programs associated with this topic

Experts

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Andrew Philip Hunter
Director, Defense-Industrial Initiatives Group and Senior Fellow, International Security Program
Tom Karako
Senior Fellow, International Security Program and Director, Missile Defense Project
  • Twitter
Rebecca Hersman
Director, Project on Nuclear Issues, and Senior Adviser, International Security Program
Mark F. Cancian
Senior Adviser, International Security Program
Suzanne Spaulding
Senior Adviser, Homeland Security, International Security Program
  • LinkedIn
  • Twitter
Samuel Brannen
Senior Fellow, International Security Program and Director, Risk and Foresight Group
Gregory Sanders
Deputy Director and Fellow, Defense-Industrial Initiatives Group
  • Twitter
Sue Mi Terry
Senior Fellow, Korea Chair
John Schaus
Senior Fellow, International Security Program
Ian Williams
Fellow, International Security Program and Deputy Director, Missile Defense Project
Rhys McCormick
Fellow, Defense-Industrial Initiatives Group
  • Twitter
Kathleen H. Hicks
Senior Advisor
Seth G. Jones
Senior Vice President; Harold Brown Chair; and Director, International Security Program
Anthony H. Cordesman
Arleigh A. Burke Chair in Strategy
  • Twitter
Todd Harrison
Director, Defense Budget Analysis, Director, Aerospace Security Project and Senior Fellow, International Security Program
View all resident experts associated with this topic
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