peacekeeping vs armed services

peacekeeping and armed services both are nouns.

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

peacekeeping (noun)	armed services (noun)
the activity of keeping the peace by military forces (especially when international military forces enforce a truce between hostile groups or nations)	the military forces of a nation

peacekeeping (adjective)	armed services (adjective)
of or relating to the preservation of peace between hostile groups by international military forces