What happened on September 11 2011?

Answer 1

On September 11, 2001, a series of coordinated terrorist attacks were carried out by the extremist group al-Qaeda against the United States. Four commercial airplanes were hijacked; two were flown into the Twin Towers of the World Trade Center in New York City, causing their collapse, while a third struck the Pentagon in Arlington, Virginia. The fourth plane, United Airlines Flight 93, crashed into a field in Pennsylvania after passengers attempted to overcome the hijackers. The attacks resulted in the deaths of nearly 3,000 people and had profound global implications, leading to significant changes in U.S. foreign and domestic policy.