war vs make peace

war is a noun but make peace is not a noun.

Word	Noun	Adjective	Verb	Adverb
war	Yes	No	Yes	No
make peace	No	No	Yes	No

war (noun)	make peace (noun)
the waging of armed conflict against an enemy
a concerted campaign to end something that is injurious
an active struggle between competing entities
a legal state created by a declaration of war and ended by official declaration during which the international rules of war apply

war (verb)	make peace (verb)
make or wage war	end hostilities