Pentagon, the

Pentagon, the,

building accommodating the U.S. Dept. of Defense. Located in Arlington, Va., across the Potomac River from Washington, D.C., the Pentagon is a vast five-sided building designed by Los Angeles architect G. Edwin Bergstrom. It consists of five concentric pentagons connected to each other by corridors and covering an area of 34 acres (13.8 hectares). Completed in 1943, it was intended to consolidate the various offices of the U.S. War Dept., now the Dept. of Defense. Extensive renovations (1994–2011) have modernized and replaced much of the original building. One side of the vast building was damaged by a terrorist attack (Sept. 11, 2001) in which a hijacked airplane was intentionally crashed into the Pentagon. As a result of the crash and subsequent fire 189 people were killed, including the passengers and crew of the jetliner. The attack was coordinated with a similar one on the twin towers of the World Trade CenterWorld Trade Center,
former building complex in lower Manhattan, New York City, consisting of seven buildings and a shopping concourse on a 16-acre (6.5-hectare) site; it was destroyed by a terrorist attack on Sept. 11, 2001.
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See S. Vogel, The Pentagon: A History (2007).

References in periodicals archive ?
As with the 9/11 attack on the Pentagon, the attacks on the Twin Towers in New York City have spawned a tremendous urban legend industry.
During their tour at the Pentagon, the NLC leaders visited the site of an internal memorial to the victims of September 11 within the Pentagon.
For Clinton, the Pentagon, the military-industrial complex, bloated "defense" budgets, and the maintenance of the U.
In the United States, responsibility for dealing with international terrorism is parceled out, with some duplication, primarily among the CIA, the FBI, the Pentagon, the State Department, and the National Security Council.
The effectiveness of many other potential countermeasures to SDI has not been sufficiently studied by the Pentagon, the report says, even though such studies are essential to understanding whether the SDI program can work.