military vs naval officer

military and naval officer both are nouns.

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

military (noun)	naval officer (noun)
the military forces of a nation	an officer in the navy

military (adjective)	naval 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