military vs horse cavalry

military and horse cavalry both are nouns.

Word	Noun	Adjective	Verb	Adverb
military	Yes	Yes	No	No
horse cavalry	Yes	No	No	No

military (noun)	horse cavalry (noun)
the military forces of a nation	an army unit mounted on horseback
	troops trained to fight on horseback

military (adjective)	horse cavalry (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