The Pentagon

The September 11 attacks, colloquially known as 9/11, were a coordinated series of suicide attacks perpetrated by the Islamist terrorist organization al-Qaeda against the United States in 2001. Nineteen terrorists hijacked four airliners, then flew one into each of the Twin Towers at the World Trade Center in New York City. The third plane crashed into the Pentagon, the headquarters of the United States 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 the global war on terror, seeking to eliminate hostile groups deemed terrorist organizations, and the governments purported to support them. This foreign policy agenda was conducted over the next two decades.

headquarters of the United States Department of Defense; named after the shape of the building, a polygon with five (greek: penta) sides

air service branch of the United States Armed Forces

2005 turn-based strategy computer game

2010 turn-based strategy video game

2001 hijacking of an airliner and subsequent deliberate crash into The Pentagon in Virginia, USA

2001 turn-based strategy video game

correlation theory

historic site

federal law enforcement agency within the U.S. Department of Defense

E-Ring is an American military drama television series created by Ken Robinson and David McKenna and executive produced by Jerry Bruckheimer, that premiered on NBC on September 21, 2005, and aired through February 1, 2006. The series stars Benjamin Bratt, Dennis Hopper, Aunjanue Ellis, Kerr Smith and Kelly Rutherford and was produced by Jerry Bruckheimer Television and Warner Bros. Television.

American architect (1876–1955)

Washington Metro station in Arlington, VA on the Blue and Yellow lines

Pentagon command and communications center for the National Command Authority

June 2025 parade in Washington, D.C