military vs field hospital

military and field hospital both are nouns.

Word	Noun	Adjective	Verb	Adverb
military	Yes	Yes	No	No
field hospital	Yes	No	No	No

military (noun)	field hospital (noun)
the military forces of a nation	a temporary military hospital near the battle lines

military (adjective)	field hospital (adjective)
associated with or performed by members of the armed services as contrasted with civilians
characteristic of or associated with soldiers or the military
of or relating to the study of the principles of warfare