John Gill Commentary 1 Kings 15:32

"And there was war between Asa and Baasha king of Israel all their days." — 1 Kings 15:32 (ASV)

And there was war between Asa and Baasha king of Israel all their days .
] For being a wicked man, and an idolater, Asa had no respect for him, though he had slain the family of Jeroboam; nor had Baasha any regard to Judah, nor to the worship of God at Jerusalem, so that there was no good understanding between them, but frequent acts of hostility, see (1 Kings 15:16) .