The '''Terrorist Attacks of September 11, 2001''' occurred when [[al Qaeda]]-affiliated [[Islam|Islamic]] extremists hijacked four transcontinental airliners and used them to strike targets in the [[United States]], succeeding in destroying the twin towers of the World Trade Center in New York City and a portion of the Pentagon in Washington, D.C.; the fourth aircraft, in which the hijackers are believed to have targeted the White House or the Capital Building, crashed into an empty field near Shanksville, Pennsylvania after passengers fought back to re-take control. | The '''Terrorist Attacks of September 11, 2001''' occurred when [[al Qaeda]]-affiliated [[Islam|Islamic]] extremists hijacked four transcontinental airliners and used them to strike targets in the [[United States]], succeeding in destroying the twin towers of the World Trade Center in New York City and a portion of the Pentagon in Washington, D.C.; the fourth aircraft, in which the hijackers are believed to have targeted the White House or the Capital Building, crashed into an empty field near Shanksville, Pennsylvania after passengers fought back to re-take control. |