Overland Campaign vs War between the States

Overland Campaign and War between the States both are nouns.

Word	Noun	Adjective	Verb	Adverb
Overland Campaign	Yes	No	No	No
War between the States	Yes	No	No	No

Overland Campaign (noun)	War between the States (noun)
American Civil War; a series of indecisive battles in Grant's campaign (1864) against Lee in which both armies suffered terrible losses	civil war in the United States between the North and the South; 1861-1865