military policeman vs military

military policeman and military both are nouns.

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

military policeman (noun)	military (noun)
a member of the military police who polices soldiers and guards prisoners	the military forces of a nation

military policeman (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