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The Pentagon. / 38.87083°N 77.05500°W / 38.87083; -77.05500. The Pentagon is the headquarters building of the United States Department of Defense, in Arlington County, Virginia, across the Potomac River from Washington, D.C. The building was constructed on an accelerated schedule during World War II.
Jul 17, 2024 · The Pentagon is the headquarters of the U.S. Department of Defense, which provides the military forces needed to deter war and ensure national security. Find the latest news, features, and multimedia on NATO, Ukraine, Medal of Honor, and more.
The Pentagon, one of the world's largest office buildings, is the headquarters of the Department of Defense. Located in the Washington, D.C., area, the five-sided building has three times the ...
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- It Was Supposed to Be temporary.
- Why Make It A Pentagon Shape?
- An Incredible Amount of Workers and Materials Brought It Together.
- Temporary Needs Quickly Became permanent.
- Ongoing Renovations Likely Saved Lives on 9/11.
- Post-9/11 Renovations Continued For A decade.
- There Were Challenges.
The Pentagon was the brainchild of Army Brig. Gen. Brehon B. Sommervell, who, in the early 1940s, pitched it as a temporary solution to the then-War Department's critical shortage of space as the threat of joining World War II became imminent. The plan was approved, and on Sept. 11, 1941, construction began. About 296 acres of land were designated ...
The logic behind this was pretty simple — the site designated for construction was bordered by five roadways, so the developers decided to go with a five-sided building. Naturally, they called it the Pentagon.
The grounds and building went up in a stunning 16 months. The building was officially completed in January 1943, thanks to the help of 1,000 architects and 14,000 tradesmen who worked three shifts around the clock. A staggering amount of materials were needed, too, including: 1. 435,000 yards of concrete 2. 43,000 tons of steel 3. 680,000 tons of s...
At the height of World War II, the Pentagon housed more than 33,000 people, and its worth exceeded expectations. Officials discovered that they did, in fact, need to keep such a large military force active once the war was over. So, instead of turning the building into something else, it remained the military's command center. Nowadays, it houses t...
On Sept. 11, 2001, the nation's sense of security was shattered when terrorists hijacked commercial airplanes and flew them into New York City's World Trade Center, into a field in rural Pennsylvania, and into the nation's symbol of military might. American Airlines Flight 77 crashed into the west side of the Pentagon, penetrating three of its five...
The team working those initial renovations was tasked with rebuilding the damaged portions. The reconstruction effort was dubbed the Phoenix Project, and it cost $500 million. By Aug. 15, 2002 — less than a year later — the first tenants whose offices were damaged began to return, even though renovations were nowhere near complete. Aside from the r...
Even before the terrorist attacks, the renovations were considered a massive undertaking, which included: 1. Removing all hazardous materials 2. Replacing all building systems 3. Adding new elevators and escalators to improve vertical circulation 4. Installing new security and telecommunications systems to match the times 5. Integrating sustainable...
Dec 18, 2009 · Learn about the Pentagon, the headquarters of the U.S. Department of Defense, and its construction, role and significance in American history. Find out how it was built, what happened on 9/11 and how it changed after the attacks.
Jul 19, 2024 · Pentagon, large five-sided building in Arlington county, Virginia, near Washington, D.C., that serves as the headquarters of the U.S. Department of Defense, including all three military services— Army, Navy, and Air Force. Constructed during 1941–43, the Pentagon was intended to consolidate the offices of the War Department, which had ...
Apr 10, 2017 · Learn how the Pentagon, the world's largest low-rise office building, got its unique shape and faced challenges during its construction and renovation. Discover its history, symbolism and role in the 9/11 attacks.
