operational casualty vs military

operational casualty and military both are nouns.

Word	Noun	Adjective	Verb	Adverb
operational casualty	Yes	No	No	No
military	Yes	Yes	No	No

operational casualty (noun)	military (noun)
loss of military equipment in field operations	the military forces of a nation

operational casualty (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