Caption:
The largest terrorist attack on American soil happened on September 11, 2001, when terrorists hijacked four airplanes and flew them into important buildings. Two of the planes hit the World Trade Center in New York City, one hit the Pentagon in Washington, D.C., and a fourth was headed for the U.S. Capitol building before it crashed in a field in Pennsylvania. The terrorists were all from the Middle East and were protesting American involvement in Middle Eastern affairs. In all, 2,996 people were killed and over 6,000 hurt. In response, the United States launched two wars to destroy the terrorist networks that planned the attack.