military vs regular army

military and regular army both are nouns.

Word	Noun	Adjective	Verb	Adverb
military	Yes	Yes	No	No
regular army	Yes	No	No	No

military (noun)	regular army (noun)
the military forces of a nation	a permanent organization of the military land forces of a nation or state

military (adjective)	regular army (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