United States Army Military District of Washington
army.mil/institution/organization/unitsand (link didn’t work)
The United States Army Military District of Washington is one of nineteen major commands of the United States Army. Its headquarters are located at Fort Lesley J. McNair in Washington, D.C. The missions of the units in the Military District of Washington include ceremonial tasks as well as a combat role in the defense of the National Capital
Interesting set of missions, still.
Might be comms using them, maybe not.
Let’s see what happens.