American Airlines Flight 77 in the context of "September 11 attacks"

The September 11 attacks, colloquially and perhaps more commonly known as 9/11, were four coordinated Islamist terrorist suicide attacks by al-Qaeda against the United States in 2001. Nineteen terrorists hijacked four commercial airliners, then flew one into each of the Twin Towers at the World Trade Center in New York City, and another into the Pentagon, the headquarters of the U.S. Department of Defense, in Arlington County, Virginia. The fourth plane crashed in a rural Pennsylvania field during a passenger revolt. In response to the attacks, the United States launched and waged the global war on terror over two decades, with the mission to eliminate hostile groups deemed terrorist organizations, and the governments purported to support them.

Ringleader and hijacker Mohamed Atta flew American Airlines Flight 11 into the North Tower of the World Trade Center complex at 8:46 a.m. Seventeen minutes later at 9:03 a.m., hijacker Marwan al-Shehhi flew United Airlines Flight 175 into the South Tower. Both collapsed within an hour and forty-two minutes, destroying the remaining five structures in the complex. Hijacker Hani Hanjour flew American Airlines Flight 77 into the Pentagon at 9:37 a.m., causing a partial collapse. The fourth and final flight, United Airlines Flight 93, flown by hijacker Ziad Jarrah, was believed by investigators to target either the United States Capitol or the White House. Alerted to the previous attacks, the passengers revolted against the hijackers who crashed the aircraft into a field near Shanksville, Pennsylvania, at 10:03 a.m. The Federal Aviation Administration ordered an indefinite ground stop for all air traffic in U.S. airspace, preventing any further aircraft departures until September 13 and requiring all airborne aircraft to return to their point of origin or divert to Canada. The actions undertaken in Canada to support incoming aircraft and their occupants were collectively titled Operation Yellow Ribbon.

The September 11 attacks, colloquially known as 9/11, were four coordinated Islamist terrorist suicide attacks by al-Qaeda against the United States in 2001. Nineteen terrorists hijacked four commercial airliners, then flew one into each of the Twin Towers at the World Trade Center in New York City, and another into the Pentagon, the headquarters of the U.S. Department of Defense, in Arlington County, Virginia. The fourth plane crashed in a rural Pennsylvania field during a passenger revolt. In response to the attacks, the United States launched and waged the global war on terror over two decades, with the mission to eliminate hostile groups deemed terrorist organizations, and the governments purported to support them.

Ringleader and hijacker Mohamed Atta flew American Airlines Flight 11 into the North Tower of the World Trade Center complex at 8:46 a.m. Seventeen minutes later at 9:03 a.m., hijacker Marwan al-Shehhi flew United Airlines Flight 175 into the South Tower. Both collapsed within an hour and forty-two minutes, destroying the remaining five structures in the complex. Hijacker Hani Hanjour flew American Airlines Flight 77 into the Pentagon at 9:37 a.m., causing a partial collapse. The fourth and final flight, United Airlines Flight 93, flown by hijacker Ziad Jarrah, was believed by investigators to target either the United States Capitol or the White House. Alerted to the previous attacks, the passengers revolted against the hijackers who crashed the aircraft into a field near Shanksville, Pennsylvania, at 10:03 a.m. The Federal Aviation Administration ordered an indefinite ground stop for all air traffic in U.S. airspace, preventing any further aircraft departures until September 13 and requiring all airborne aircraft to return to their point of origin or divert to Canada. The actions undertaken in Canada to support incoming aircraft and their occupants were collectively titled Operation Yellow Ribbon.

Disaster medicine is the area of medical specialization serving the dual areas of providing health care to disaster survivors and providing medically related disaster preparation, disaster planning, disaster response and disaster recovery leadership throughout the disaster life cycle. Disaster medicine specialists provide insight, guidance and expertise on the principles and practice of medicine both in the disaster impact area and healthcare evacuation receiving facilities to emergency management professionals, hospitals, healthcare facilities, communities and governments. The disaster medicine specialist is the liaison between and partner to the medical contingency planner, the emergency management professional, the incident command system, government and policy makers.

Disaster medicine is unique among the medical specialties in that unlike all other areas of specialization, the disaster medicine specialist does not practice the full scope of the specialty everyday but only in emergencies. Indeed, the disaster medicine specialist hopes to never practice the full scope of skills required for board certification. However, like specialists in public health, environmental medicine and occupational medicine, disaster medicine specialists engage in the development and modification of public and private policy, legislation, disaster planning and disaster recovery. Within the United States of America, the specialty of disaster medicine fulfills the requirements set for by Homeland Security Presidential Directives (HSPD), the National Response Plan (NRP), the National Incident Management System (NIMS), the National Resource Typing System (NRTS) and the NIMS Implementation Plan for Hospitals and Healthcare Facilities.

Hani Salih Hasan Hanjour (Arabic: هاني صالح حسن حنجور, romanized: Hānī Ṣāliḥ Ḥasan Ḥanjūr; 30 August 1972 – 11 September 2001) was a Saudi terrorist and a member of al-Qaeda who was the hijacker-pilot of American Airlines Flight 77, crashing the plane into the Pentagon as part of the September 11 attacks in 2001.

Hanjour first went to the United States in 1991, studying English for less than two months at an American higher education institution before returning to Saudi Arabia early the next year. He returned to the United States in 1996, studying English in California before he began taking flying lessons in Florida and then Arizona. He received his commercial pilot certificate in 1999, and went back to his native Saudi Arabia to find a job as a commercial pilot. Hanjour applied to civil aviation school in Jeddah, but was turned down. Hanjour left his family in late 1999, telling them that he would be traveling to the United Arab Emirates to find work. According to Khalid Sheikh Mohammed, Osama bin Laden or Mohammed Atef identified Hanjour at an Afghanistan training camp as a trained pilot and selected him to participate in the 11 September attacks.

Khalid Muhammad Abdallah al-Mihdhar (Arabic: خالد المحضار, romanized: Khālid al-Miḥḍār; also transliterated as AL Mihdhar; 16 May 1975 – 11 September 2001) was a Saudi terrorist hijacker. He was one of the five hijackers of American Airlines Flight 77, which was flown into the Pentagon as part of the September 11 attacks.

Al-Mihdhar was born in Saudi Arabia. In early 1999, he traveled to Afghanistan where, as an experienced and respected jihadist, he was selected by Osama bin Laden to participate in the attacks. Al-Mihdhar arrived in California with fellow hijacker Nawaf al-Hazmi in January 2000, after traveling to Malaysia for the Kuala Lumpur al-Qaeda Summit. At this point, the Central Intelligence Agency (CIA) was aware of al-Mihdhar, and he was photographed in Malaysia with another al-Qaeda member who was involved in the bombing of the USS Cole. The CIA did not inform the Federal Bureau of Investigation (FBI) when it learned that al-Mihdhar and al-Hazmi had entered the United States, and al-Mihdhar was not placed on any watchlists until late August 2001.

Nawaf Muhammad Salim al-Hazmi (Arabic: نواف محمد سالم الحازمي, romanized: Nawāf Muḥammad Sālim al-Ḥāzmī; 9 August 1976 – 11 September 2001) was a Saudi terrorist hijacker who was one of five hijackers of American Airlines Flight 77, which they crashed into the Pentagon as part of the September 11 attacks.

Al-Hazmi and a long-time friend, Khalid al-Mihdhar, left their homes in Saudi Arabia in 1995 to fight for Muslims in the Bosnian War. Al-Hazmi later traveled to Afghanistan to fight with the Taliban against the Afghan Northern Alliance. He returned to Saudi Arabia in early 1999.

The September 11 attacks were the deadliest terrorist attacks in human history, causing the deaths of 2,996 people, including 19 hijackers who committed murder–suicide and 2,977 victims. Thousands more were injured, and long-term health effects have arisen as a consequence of the attacks. New York City took the brunt of the death toll when the Twin Towers of the World Trade Center complex in Lower Manhattan were attacked, with an estimated 1,700 victims from the North Tower and around a thousand from the South Tower. 200 mi (320 km) southwest in Arlington County, Virginia, another 125 were killed in the Pentagon. The remaining 265 fatalities included the 92 passengers and crew of American Airlines Flight 11, the 65 aboard United Airlines Flight 175, the 64 aboard American Airlines Flight 77 and the 44 aboard United Airlines Flight 93. The attack on the World Trade Center's North Tower alone made the September 11 attacks the deadliest act of terrorism in human history.

Most of those who perished were civilians, except for: 344 members of the New York City Fire Department and New York Fire Patrol; 71 law enforcement officers who died in the World Trade Center and on the ground in New York City; 55 military personnel who died at the Pentagon in Arlington County, Virginia; a U.S. Fish and Wildlife Service officer who died when Flight 93 crashed into a field near Shanksville, Pennsylvania; and the 19 terrorists who died on board the four aircraft. At least 102 countries lost citizens in the attacks.