military vs field officer

military and field officer both are nouns.

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

military (noun)	field officer (noun)
the military forces of a nation	an officer holding the rank of major or lieutenant colonel or colonel

military (adjective)	field officer (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