'Wars' in the Bible

Now the acts of Rehoboam, from first to last, are they not written in the records of Shemaiah the prophet and of Iddo the seer, according to genealogical enrollment? And there were wars between Rehoboam and Jeroboam continually.

For the eyes of the Lord move to and fro throughout the earth that He may strongly support those whose heart is completely His. You have acted foolishly in this. Indeed, from now on you will surely have wars.”

Now the rest of the acts of Jotham, even all his wars and his acts, behold, they are written in the Book of the Kings of Israel and Judah.