National Guard vs military

National Guard and military both are nouns.

Word	Noun	Adjective	Verb	Adverb
National Guard	Yes	No	No	No
military	Yes	Yes	No	No

National Guard (noun)	military (noun)
United States military reserves recruited by the states and equipped by the federal government; subject to call by either	the military forces of a nation

National Guard (adjective)	military (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