battle vs military machine

battle and military machine both are nouns.

Word	Noun	Adjective	Verb	Adverb
battle	Yes	No	Yes	No
military machine	Yes	No	No	No

battle (noun)	military machine (noun)
a hostile meeting of opposing military forces in the course of a war	the military forces of a nation
an energetic attempt to achieve something
an open clash between two opposing groups (or individuals)

battle (verb)	military machine (verb)
battle or contend against in or as if in a battle