History of the United States (1991–2008) South Tower less than twenty minutes later at 9:03 A.M. (EST), resulting in the collapse of both 110 story skyscrapers, and the destruction of the World Trade Center. The third hijacked plane, American Airlines Flight 77, was crashed into the Pentagon (the headquarters of the United States Department of Defense) in Arlington County, Virginia, demolishing a section of the outer southwest facing wall. After discovering that their plane, United Airlines Flight 93, was going to be used as a missile, passengers attempted to regain control of the plane which had been redirected towards Washington, D.C. However, after regaining control from
Arlington County Fire Department in cooperation with the federal Department of Homeland Security as a part of its stepped up disaster preparedness program. Arlington County Fire Department The Arlington County Fire Department (ACFD) provides fire, emergency medical, and allied public safety services for Arlington County and the City of Falls Church in Virginia, USA. It is highly regarded within the profession as an innovator and leader in enhancing the industry. Among its many firsts are the hiring of the first female career firefighter in the world in 1974 and partnering with the United States Public Health Service to develop America's first Metropolitan Medical Strike