peacekeeping vs war machine

peacekeeping and war machine both are nouns.

Word	Noun	Adjective	Verb	Adverb
peacekeeping	Yes	Yes	No	No
war machine	Yes	No	No	No

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