combat casualty vs battle damage

combat casualty and battle damage both are nouns.

Word	Noun	Adjective	Verb	Adverb
combat casualty	Yes	No	No	No
battle damage	Yes	No	No	No

As nouns, combat casualty and battle damage are synonyms defined as:

combat casualty (noun)	battle damage (noun)
loss of military equipment in battle	loss of military equipment in battle