FWIW, Fort Belvoir is right around the corner from Mt. Vernon. Drove right by the gates on the way...
and from
WikipediaFort Belvoir serves as the headquarters for the Defense Logistics Agency, the Defense Acquisition University, the Defense Contract Audit Agency, the Defense Technical Information Center, the United States Army Intelligence and Security Command, the United States Army Military Intelligence Readiness Command, the Missile Defense Agency, the Defense Threat Reduction Agency, and the National Geospatial-Intelligence Agency, all agencies of the United States Department of Defense.
Fort Belvoir is home to the Virginia National Guard's 29th Infantry Division (Light) and elements of ten Army Major Commands; nineteen different agencies and direct reporting units of the Department of Army; eight elements of the United States Army Reserve and the Army National Guard; and twenty-six Department of Defense agencies. Also located here are the 249th Engineer Battalion (Prime Power), the Military District of Washington's 12th Aviation Battalion which provides rotary-wing movement to the DoD and Congress, a Marine Corps detachment, a United States Air Force activity, United States Army Audit Agency, and an agency from the Department of the Treasury. In addition, Fort Belvoir is home to National Reconnaissance Office's (NRO) Aerospace Data Facility, East (ADF-E).
"Justice and power must be brought together, so that whatever is just may be powerful, and whatever is powerful may be just.” ~Blaise Pascal~