The September 11 attacks, commonly known as 9/11, were a series of four coordinated suicide terrorist attacks carried out by the militant Islamic extremist network al-Qaeda against the United States. On the morning of Tuesday, September 11, 2001, nineteen terrorists hijacked four commercial airliners mid-flight while traveling from the northeastern U.S. to California. The attackers were organized into three groups of five members and one group of four, with each group including one designated flight-trained hijacker who took control of the aircraft. Their goal was to crash the planes into prominent American buildings, inflicting mass casualties and major structural damage. The hijackers successfully crashed the first two planes into the North and South Towers of the World Trade Center in New York City, and the third plane into the Pentagon in Arlington, Virginia. The fourth plane was intended to hit a federal government building in Washington, D.C., but instead crashed down in a field outside Shanksville, Pennsylvania, following a passenger revolt that foiled the attack.
The attacks resulted in 2,977 fatalities, over 25,000 injuries, and substantial long-term health consequences, in addition to at least $10 billion in infrastructure and property damage. It remains the deadliest terrorist attack in human history and the single deadliest incident for firefighters and law enforcement officers in the history of the United States, with 340 and 72 killed, respectively.
Numerous memorials have been constructed, including the National September 11 Memorial & Museum in New York City, the Pentagon Memorial in Arlington County, Virginia, and the Flight 93 National Memorial at the Pennsylvania crash site.
Max Beilke, retired Army master sergeant, 69, Laurel, Md.
Carrie Blagburn, 48, Temple Hills, Md.
Angelene Carter, 51, Forestville, Md.
Sharon Carver, 38, Waldorf, Md.
John J. Chada, 55, Manassas, Va.
Ada M. Davis, 57, Camp Springs, Md.
Diana Borrero de Padro, 55, Woodbridge, Va.
Amelia V. Fields, 36, Dumfries, Va.
Cortez Ghee, 54, Reiserstown, Md.
Brenda C. Gibson, 59, Falls Church, Va.
Ron Golinski, 60, Columbia, Md.
Samantha Lightbourn-Allen, 36, Hillside, Md.
Diane Hale-McKinzy, 38, Alexandria, Va.
Carolyn B. Halmon, 49, Washington, D.C.
Sheila Hein, 51, University Park, Md.
Jimmie Holley, 54, Lanham, Md.
Peggie Hurt, 36, Crewe, Va.
Brenda Kegler, 49, Washington, D.C.
David W. Laychak, 40, Manassas, Va.
Molly McKenzie, 38, Dale City, Va.
Teresa M. Martin, 45, Stafford, Va.
Ada L. Mason-Acker, 50, Springfield, Va.
Robert J. Maxwell, 53, Manassas, Va.
Odessa V. Morris, 54, Upper Marlboro, Md.
Ted H. Moy, 48, Silver Spring, Md.
Rhonda S. Rasmussen, 44, Woodbridge, Va.
Deborah Ramsaur, 45, Annandale, Va.
Martha M. Reszke, 56, Stafford, Va.
Cecelia Richard, 41, Fort Washington, Md.
Edward V. Rowenhorst, 32, Fredricksburg, Va.
Judy Rowlett, 44, Woodbridge, Va.
Robert Russell, 52, Oxen Hill, Md.
Marjorie C. Salamone, 53, Springfield, Va.
Janice Scott, 46, Springfield, Va.
Michael Selves, 53, Fairfax, Va.
Marian H. Serva, 47, Stafford, Va.
Antionette Sherman, 35, Forest Heights, Md.
Donald D. Simmons, 58, Dumfries, Va.
Cheryle D. Sincock, 53, Dale City, Va.
Gary F. Smith, retired Army lieutenant colonel, 55, Alexandria, Va.
Edna L. Stephens, 53, Washington, D.C.
Patricia J. Statz, 41, Tacoma Park, Md.
Sandra C. Taylor, 50, Alexandria, Va.
Willie Q. Troy, 51, Aberdeen Proving Ground, Md.
Meta L. Waller, 60, Alexandria, Va.
Sandra L. White, 44, Dumfries, Va.
Lisa L. Young, 36, Germantown, Md.
Angela Houtz, 27, La Plata, Md.
Brady Howell, 26, Arlington, Va.
Judith Jones, 53, Woodbridge, Va.
James T. Lynch, 55, Manassas, Va.
Jack Punches, retired Navy captain, 51, Clifton, Va.
Marvin Woods, 58, Great Mills, Md.
Allen Boyle, 30, Fredericksburg, Va.
Rosa Maria Chapa, 64, Springfield, Va.
Sandra N. Foster, 41, Clinton, Md.
Robert J. Hymel, 55, Woodbridge, Va.
Shelley A. Marshall, 37, Marbury, Md.
Patricia E. Mickley, 41, Springfield, Va.
Charles E. Sabin, 54, Burke, Va.
Karl W. Teepe, 57, Centreville, Va.
David Bernard, 57, IRS, Chelmsford, Mass.
Leonard Hatton, 45, FBI, Ridgefield Park, N.J.
Craig Miller, 29, Secret Service, Virginia
Bryan Jack, 48, Defense Department, Alexandria, Va.
Marion Britton, 53, Census Bureau, Brooklyn, N.Y.
Richard Guadagno, 39, Fish and Wildlife Service, Eureka, Calif.
Waleska Martinez, 37, Census Bureau, Jersey City, N.J.
Herbert W. Homer, 48, Defense Contract Management Agency, Milford, Mass.