Hogan's domain
I believe the answer is:
stalag
'hogan's domain' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for stalag that I've seen before include "German POW camp in WWII" , "German prison_camp" , "German concentration camp" , "Type of German prison camp" , "German prisoner-of-war camp of WW2" .)