war game vs military

war game and military both are nouns.

Word	Noun	Adjective	Verb	Adverb
war game	Yes	No	No	No
military	Yes	Yes	No	No

war game (noun)	military (noun)
a simulation of a military operation intended to train military commanders or to demonstrate a situation or to test a proposed strategy	the military forces of a nation

war game (adjective)	military (adjective)
	associated with or performed by members of the armed services as contrasted with civilians
	characteristic of or associated with soldiers or the military
	of or relating to the study of the principles of warfare