military vs open order

military and open order both are nouns.

Word	Noun	Adjective	Verb	Adverb
military	Yes	Yes	No	No
open order	Yes	No	No	No

military (noun)	open order (noun)
the military forces of a nation	a military formation leaving enough space between ranks to allow an inspecting officer to pass

military (adjective)	open order (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