unarmed vs military machine

unarmed is not a noun while military machine is a noun.

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

unarmed (noun)	military machine (noun)
	the military forces of a nation

unarmed (adjective)	military machine (adjective)
(used of persons or the military) not having or using arms
(used of plants or animals) lacking barbs or stings or thorns