What was The terrorist organization al-Qaeda was responsible for?

Al-Qaeda is a militant Islamist organization responsible for numerous high-profile terrorist attacks, most notably the September 11, 2001 attacks in the United States, which killed nearly 3,000 people. Founded by Osama bin Laden, Al-Qaeda has aimed to establish a global jihad against perceived enemies of Islam, primarily targeting Western nations and their allies. The group has been involved in various attacks worldwide, promoting its extremist ideology through violence and terrorism.