military vs war zone

military and war zone both are nouns.

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

military (noun)	war zone (noun)
the military forces of a nation	a combat zone where military operations are coordinated (especially a designated area in international waters where the rights of neutrals are not respected by nations at war)

military (adjective)	war zone (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