amphibious operation vs military

amphibious operation and military both are nouns.

Word	Noun	Adjective	Verb	Adverb
amphibious operation	Yes	No	No	No
military	Yes	Yes	No	No

amphibious operation (noun)	military (noun)
a military operation by both land and sea forces	the military forces of a nation

amphibious operation (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