combat vs military

combat and military both are nouns.

Word	Noun	Adjective	Verb	Adverb
combat	Yes	No	Yes	No
military	Yes	Yes	No	No

combat (noun)	military (noun)
an engagement fought between two military forces	the military forces of a nation
the act of fighting; any contest or struggle

combat (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

combat (verb)	military (verb)
battle or contend against in or as if in a battle