military vs naval unit

military and naval unit both are nouns.

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

military (noun)	naval unit (noun)
the military forces of a nation	a military unit that is part of a navy

military (adjective)	naval unit (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