Cupola
Yup!
hole in the Ground with a glass dome about 3' across and about 2" thick and very hot inside, so I'm told. I wouldn't know, I was in the Caravan with the air con turned to high.
The Cupolii at Brüggen were some distance further along the runway from the caravan but the same distance in from the runway. During exercises they were manned by local at one end and some form of approach at the other end. The real losers in this scenario were the armed sentries who were there to stop the Guards 3rd Shock Army from interfering with the safe departure of the worlds biggest Jaguar/Tornado wing (choose your era!). Im sure some of the controllers of the time can set us right.
In latter times (late 80s) due to real 'elf & safety, the sentries were brought into cupola anytime there was a multi aircraft scramble as there were thought to be health implications with Tornado "noise" and internal body vibrations at close quarters