warfare vs battle

warfare and battle both are nouns.

Word	Noun	Adjective	Verb	Adverb
warfare	Yes	No	No	No
battle	Yes	No	Yes	No

As nouns, battle is a hypernym of warfare; that is, battle is a word with a broader meaning than warfare:

Other hypernyms of warfare include conflict, struggle.

warfare (noun)	battle (noun)
the waging of armed conflict against an enemy	a hostile meeting of opposing military forces in the course of a war
an active struggle between competing entities	an energetic attempt to achieve something
	an open clash between two opposing groups (or individuals)

warfare (verb)	battle (verb)
	battle or contend against in or as if in a battle