September 11 attacks

Definition

The September 11 attacks occurred on September 11, 2001 when terrorists hijacked four airplanes, crashing two into the Twin Towers of the World Trade Center in New York City, one into the Pentagon near Washington D.C., while passengers fought back against terrorists aboard another plane causing it to crash into a field in Pennsylvania.

Related terms

Al-Qaeda: A radical Islamic extremist group responsible for planning and executing the September 11 attacks.

Terrorism: The use of violence or intimidation, often targeting civilians, for political or ideological purposes.

Global War on Terrorism (GWOT): A term used by President George W. Bush to describe the ongoing efforts to combat terrorism globally.