military vs operational

military is a noun but operational is not a noun.

Word	Noun	Adjective	Verb	Adverb
military	Yes	Yes	No	No
operational	No	Yes	No	No

military (noun)	operational (noun)
the military forces of a nation

military (adjective)	operational (adjective)
associated with or performed by members of the armed services as contrasted with civilians	(military) of or intended for or involved in military operations
characteristic of or associated with soldiers or the military	pertaining to a process or series of actions for achieving a result
of or relating to the study of the principles of warfare	being in effect or operation
	fit or ready for use or service