military vs military campaign

military and military campaign both are nouns.

Word	Noun	Adjective	Verb	Adverb
military	Yes	Yes	No	No
military campaign	Yes	No	No	No

military (noun)	military campaign (noun)
the military forces of a nation	several related operations aimed at achieving a particular goal (usually within geographical and temporal constraints)

military (adjective)	military campaign (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