military force vs military

military force and military both are nouns.

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

military force (noun)	military (noun)
a unit that is part of some military service	the military forces of a nation

military force (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