Here are the possible solutions for one north south war clue
Answer
Clue
Relevancy
korean
Clue
One North-South war
foes
Clue
The North and South, in the Civil War
The North and the South, in the Civil War
Definition
FOE, an enemy
poles
Clue
One's north and one's south
Definition
POLE, to propel with a long stick
areacodes
Clue
Alaska, Delaware, Hawaii, Idaho, Maine, Montana, New Hampshire, North Dakota, Rhode Island, South Dakota, Vermont, and Wyoming each have just one of them
colony
Clue
Each circled pair is an abbreviation for one; all 13 are arranged in the roughly north-to-south order in which their representatives (except for John Hancock) signed the Declaration of Independence