The Pentagon

The Pentagon
Touch Of Light · CC BY-SA 4.0 · source
Name	The Pentagon
Caption	Aerial view of the Pentagon
Location	Arlington County, Virginia, United States
Coordinates	38.8719°N 77.0563°W
Architect	George Bergstrom
Contractor	John McShain
Style	Neoclassical
Completed	1943
Owner	United States Department of Defense
Height	77 ft
Area	6,500,000 sq ft

The Pentagon The Pentagon is the headquarters building of the United States Department of Defense located in Arlington County, Virginia. It serves as the central administrative hub for the United States Armed Forces, hosting offices for senior leaders from the Department of the Army, Department of the Navy, and Department of the Air Force. As an architectural landmark and operational center, it has played roles in events from World War II mobilization to responses during the September 11 attacks.

History

Construction began in 1941 during the presidency of Franklin D. Roosevelt to consolidate dispersed War Department offices that had expanded during World War II. The design and build were overseen by architect George Bergstrom and contractor John McShain with materials procured under wartime constraints influenced by Winston Churchill-era allied priorities. The building was dedicated in 1943 as part of broader mobilization efforts associated with the Battle of the Atlantic and Pacific theater logistics. Throughout the Cold War the facility hosted strategic planning for crises such as the Berlin Airlift and the Cuban Missile Crisis. After the September 11 attacks of 2001, which involved hijacked aircraft and prompted recovery operations tied to United Airlines Flight 77, the complex underwent the large-scale Pentagon Renovation Program and continuity planning aligned with directives from the National Security Council.

Architecture and Design

The design reflects a neoclassical vocabulary adapted for rapid wartime construction, led by George Bergstrom with structural input from David J. Witmer. Its distinctive five-sided geometry was influenced by site constraints near the Potomac River and adjacent transportation arteries like the Henderson Hall corridor and Arlington National Cemetery vistas. The facility's concentric rings and radial corridors optimize circulation for senior staff such as the Secretary of Defense and the Chairman of the Joint Chiefs of Staff. Original materials were subject to wartime procurement rules tied to legislation debated in the United States Congress and overseen by officials from the Office of Production Management.

Function and Operations

The facility houses command staffs, strategic planners, logistics cells, and budget offices coordinating with agencies including the National Security Agency, Central Intelligence Agency, and United States Northern Command. It supports joint operations planning for entities like United States Central Command and United States European Command, and integrates policy work with civilian components such as the Office of Management and Budget during defense appropriations. Operational continuity has involved collaboration with the Federal Emergency Management Agency and implementation of directives from the Homeland Security Council in crises.

Personnel and Organization

Workforces include uniformed officers from the United States Army, United States Navy, United States Air Force, United States Marine Corps, and United States Space Force, alongside civilian employees from the Department of Defense and contractors affiliated with firms like Lockheed Martin and Boeing. Senior leadership offices for the Secretary of the Army, Secretary of the Navy, and Secretary of the Air Force maintain suites within the complex, while joint staffs for the Chairman of the Joint Chiefs of Staff and the Under Secretary of Defense components coordinate interservice doctrine and acquisition programs. Personnel systems interface with human resources protocols from the Office of Personnel Management and occupational policies shaped by precedents from the Veterans Affairs community.

Security and Incidents

Security measures evolved after events including the 1943 fire drill incidents and the September 11 attacks that resulted in damage and loss of life when United Airlines Flight 77 struck the building. Responses involved collaboration with the Federal Bureau of Investigation, United States Secret Service for executive protection matters, and remediation under the Environmental Protection Agency for site recovery. Physical security integrates perimeter control, screening procedures coordinated with the Transportation Security Administration for visitor access, and continuity plans tested during crises such as the Hurricane Katrina regional response and cyber incidents traced to threat actors linked to nation-states.

Cultural Impact and Public Access

The facility figures prominently in films about World War II, Cold War thrillers, and post-2001 cinema depicting the September 11 attacks, appearing in portrayals alongside figures such as Dwight D. Eisenhower or events like the Tet Offensive in dramatized narratives. Public engagement includes limited tours managed in coordination with the U.S. Army Military District of Washington and security vetting by the Department of Defense for visitors, veterans, and school groups. Memorialization occurs nearby at Arlington National Cemetery and through commemorative events honoring those affected by historic incidents, with museum and archival material curated in partnership with the National Archives and Records Administration and military heritage organizations.

Category:Buildings and structures in Arlington County, Virginia Category:United States Department of Defense