combat vs armed services

combat and armed services both are nouns.

Word	Noun	Adjective	Verb	Adverb
combat	Yes	No	Yes	No
armed services	Yes	No	No	No

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

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