armed forces vs peacekeeping

armed forces and peacekeeping both are nouns.

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

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

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