11 Settembre 2001

The September 11, 2001 attacks (often referred to as 9/11) were a series of coordinated terrorist attacks upon the United States, predominantly targeting civilians, carried out on Tuesday, September 11, 2001.

That morning, 19 men affiliated with al-Qaeda[1][2] hijacked four commercial passenger jet airliners. Each team of hijackers included a trained pilot. The pilots of two teams crashed two planes into the Twin Towers of the World Trade Center in New York City, one plane into each tower, causing both towers to collapse within two hours. The pilot of the third team crashed a plane into the Pentagon in Arlington County, Virginia. Passengers and members of the flight crew on the fourth hijacked aircraft attempted to retake control of their plane from the hijackers; that plane crashed into a field in rural Somerset County, Pennsylvania. Approximately 3,000 people died in these attacks.