Noun
military prison (plural military prisons)
A prison operated by the military.
Synonym: guardhouse
It is apparent that prisoners of war are among the most vulnerable of people. Not only are they completely under the control of their captors, but in a time of conflict, the hatred and brutality of the battlefield are very likely to be mirrored within military prison walls. Jimmy Carter
I knew how many MPs I had assigned to the brigade, how many military prison operations I would be running, but we needed to evaluate how many criminal prison operations we could support. Janis Karpinski
He's found a teapot and milk and is brewing up, because that's what the English do when they've just broken out of military prison one jump ahead of murderous assassins from an alien death god cult, then survived being shot at by a main battle tank. Charles Stross