war machine vs musketry

war machine and musketry both are nouns.

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

war machine (noun)	musketry (noun)
the military forces of a nation	the technique of using small arms (especially in battle)
	musketeers and their muskets collectively