military machine vs garrison

military machine and garrison both are nouns.

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

military machine (noun)	garrison (noun)
the military forces of a nation	a fortified military post where troops are stationed
	the troops who maintain and guard a fortified place

military machine (verb)	garrison (verb)
	station (troops) in a fort or garrison