on September 11th 2001 the world changed forever here are some key facts about the tragic events of that day four commercial airplanes were hijacked by 19 terrorists from the extremist group Al-Qaeda two planes American Airlines flight 11 and United Airlines flight 175 crashed into the North and South towers of the World Trade Center in New York City a third plane American Airlines flight 77 crashed into the Pentagon in Arlington Virginia the fourth plane United Airlines flight 83 was headed for another Target in Washington DC but passengers heroically fought back causing it to crash in a field in Shanksville Pennsylvania the Twin Towers collapsed within hours causing massive destruction and loss of life nearly 3,000 people were killed including First Responders who bravely rushed to the scene the attacks led to significant changes in Global Security and the beginning of the war on terror today we remember and honor the lives l