military personnel vs military

military personnel and military both are nouns.

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

military personnel (noun)	military (noun)
soldiers collectively	the military forces of a nation
someone who serves in the armed forces; a member of a military force

military personnel (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