war machine vs muster

war machine and muster both are nouns.

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

war machine (noun)	muster (noun)
the military forces of a nation	compulsory military service
	a gathering of military personnel for duty

war machine (verb)	muster (verb)
	call to duty, military service, jury duty, etc.
	gather or bring together