There is a German Air Force Tactical Training Center at Holloman,and there is a training center for GSG9 in El Paso. Reg German ARMY trains there as
well as some kind of NATO thing.
There is a LOT of training going on with the German and US military. Luftwaffe aircraft can't always land on US military bases, so they get as close
as they can, and establish a small "outpost" to transfer personnel and cargo. Then they can get buses and trucks and transfer everything to the
base.