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al-Qaeda hijacked four passenger airliners to carry out a series of terrorist attacks (one pictured) against targets in New York City and the area of Washington, D.C., killing 2,977 people.
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Al-Qaeda
Pan-Islamic Sunni Jihadist organization (established 1988)
Al-Qaeda, is a pan-Islamist militant organization led by Sunni jihadists who self-identify as a vanguard spearheading a global Islamist revolution to unite the Muslim world under a supra-national Islamic caliphate. Its membership is mostly composed of Arabs but also includes…Source: Wikipedia (CC BY-SA)
September 11 attacks
2001 Islamist terror attacks in the U.S.
The September 11 attacks, also known as 9/11, were four coordinated Islamist terrorist suicide attacks by al-Qaeda against the United States in 2001. Nineteen terrorists hijacked four commercial airliners, crashing the first two into the Twin Towers of the World Trade Center in…Source: Wikipedia (CC BY-SA)