military vs general staff

military and general staff both are nouns.

Word	Noun	Adjective	Verb	Adverb
military	Yes	Yes	No	No
general staff	Yes	No	No	No

military (noun)	general staff (noun)
the military forces of a nation	military officers assigned to assist a senior officer in planning military policy

military (adjective)	general staff (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