Navy Annex, Federal office building in Arlington County, United States.
The Navy Annex was a large federal office building in Arlington County comprising eight separate wings and roughly one million square feet of space. The structure stood near the Pentagon along Columbia Pike and served as a major administrative center for thousands of personnel.
The building was established in 1941 as headquarters for the United States Marine Corps and played a role in managing Pacific operations during World War II. It was vacated after 1996 and demolished in 2013 to make way for Arlington National Cemetery expansion.
The building served as a major administrative center for Navy operations and shaped how the military organized its work in the Arlington region. It represented the importance of defense infrastructure in the local community's identity.
The site is no longer accessible today since the building was completely demolished in 2013. The land is now part of Arlington National Cemetery and is subject to the cemetery's security regulations.
After September 11, 2001, portions of the building served as a temporary command center for the Navy when the Pentagon required emergency relocation of operations. This unexpected role reveals how essential the site was to military infrastructure during crisis situations.
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