military vs selective service

military and selective service both are nouns.

Word	Noun	Adjective	Verb	Adverb
military	Yes	Yes	No	No
selective service	Yes	No	No	No

military (noun)	selective service (noun)
the military forces of a nation	compulsory military service

military (adjective)	selective service (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