An introduction to one of today's most complex global issues.
Fifteen Terrorist Groups You Need to Understand
Get to know the most high-profile terrorist groups of the last fifty years.
The Evolution of U.S. Counterterrorism
The war on terrorism and beyond.
263 government organizations
were created or reorganized following 9/11.
Source: Washington Post
How a Single Sentence Defined the War on Terrorism
Explore the implications of the 2001 AUMF.
Terrorism by the Numbers
The majority of terrorism-related deaths are concentrated in just five countries.
of the public says that the ability of terrorists to launch another major attack on the United States is greater than it was at the time of the 9/11 attacks.
Source: Pew Research Center
Terrorism and the Media
Understand this complicated relationship.
How Terrorism Affects You
Source: Khaled Abdullah/Reuters
This Is Your Brain on Terrorism
Although terrorism kills very few Americans, constant coverage makes us perceive a widespread threat.
Source: Sara K. Schwittek/Reuters
How a Decade of Terror Changed America
Reflections on the profound changes to U.S. policy, American society, and our collective understanding of war in the years following 9/11.
More From CFR
From Tragedy to Prevention: Lessons Learned From Terrorist Attacks
Photo: Darren Staples/Reuters
Women Are Critical to Counterterrorism
Photo: Christopher Herwig/Reuters