Everything I find says this is their HQ but the facility looks awefully small. The site looks like it was formerly a missile base or some other facility. The large shed looks very new. Is there an underground facility here?
Military - Bases
Their mission is to identify, evaluate, and evacuate nuclear
related materials; in targeting weapons of mass destruction
facilities; and in planning and executing nuclear and
nonnuclear operations in support of battlefield counter-proliferation
operations assigned to Army Service Component Commanders/Joint Forces Land