2001 - September 11, 2001 terrorist attacks

The September 11, 2001 terrorist attacks, often referred to as 9/ 11, were a series of coordinated terrorist attacks by the extremist group al-Qaeda against the United States. The attacks resulted in the destruction of the World Trade Center's twin towers in New York City, significant damage to the Pentagon near Washington, D.C., and the loss of thousands of lives. The attacks had a profound impact on global politics and led to the United States' declaration of a "War on Terror," including military campaigns in Afghanistan and Iraq.