supreme headquarters vs military

supreme headquarters and military both are nouns.

Word	Noun	Adjective	Verb	Adverb
supreme headquarters	Yes	No	No	No
military	Yes	Yes	No	No

supreme headquarters (noun)	military (noun)
the highest leaders in an organization (e.g. the commander-in-chief and senior officers of the military)	the military forces of a nation

supreme headquarters (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