military vs combat

military and combat both are nouns.

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

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

military (adjective)	combat (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

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