Interesting. I love war strategy games.
I thought it would be wise to look up "king/s of the north and south:
Kings of the North is only shown in 4 verses.
"
kings" AND "of" AND "
north"occurs 17 times in 
4 verses
Jeremiah 25:26
all 
the kings of the north, far and near, one with another; and all the kingdoms of the world which 
are on the face of the earth.
Also the king of Sheshach[fn] shall drink after them.
Jeremiah 50:41
“Behold, 
a people shall come from the north,
And a great nation and 
many kings
Shall be raised up from the ends of the earth.
Ezekiel 26:7
“For thus says the Lord GOD: ‘Behold, I will bring against Tyre from
 the north Nebuchadnezzar[fn] 
king of Babylon, 
king of kings,
with horses, with chariots, and with horsemen, and an army with many people.
https://www.blueletterbible.org/search/search.cfm?Criteria=king+of+north&t=NKJV&ss=1#s=s_primary_0_1
"king" AND "of" AND "north" occurs 63 times in 
12 verses phrase "kings of north" is used, it is used and astounding 8 times in Daniel all in 
chapter 11!
The 4 verses 
outside of Daniel again mentions the King of Babylon:
Jeremiah 25:
9 ‘behold, I will send and take all the families of 
the north,' says the LORD, ‘and Nebuchadnezzar the
 king of Babylon, My servant............
26
all the 
kings of the north, far and near, one with another; and all the kingdoms of the world which 
are on the face of the earth. Also 
the king of Sheshach[fn] shall drink after them.
Ezekiel 26:7
“For thus says the Lord GOD: ‘Behold, I will bring against Tyre 
from the north Nebuchadnezzar[fn] king of Babylon,......
I will just mention the 
1st and last verses for Daniel, as one can use a concordance to see the rest of them. Interesting
https://www.blueletterbible.org/search/search.cfm?Criteria=king+of+north&t=NKJV&ss=1#s=s_primary_0_1
NKJV)
Daniel 11:6
“And at the end of 
some years they shall join forces, for the daughterof
 the king of the South shall go to the king of the North to make an agreement; but she shall not retain the power of her authority,[fn] and neither he nor his authority[fn] shall stand; but she shall be given up, with those who brought her, and with him who begot her, and with him who strengthened her in 
those times.
40
“At the time of the end 
the king of the South shall attack him; and the king of the North shall come against him like a whirlwind, with chariots, horsemen, and with many ships; and he shall enter the countries, overwhelm 
them, and pass through.
https://www.blueletterbible.org/sea...ia=king+of+north+south&t=NKJV#s=s_primary_0_1
king north south