19 Asa experienced no more war until the end of the thirty-fifth year of his reign.
2 Chronicles 15:19 Cross References - ISV
1 Kings 15:16-17
16 Alliances with Aram against Israel
A state of continual military unrest existed between Asa and King Baasha of Israel throughout their lifetimes.
17 King Baasha of Israel invaded Judah and interdicted Ramah by building fortifications around it so no one could enter or leave to join King Asa of Judah.
1 Kings 15:31
31 Now the rest of Nadab’s accomplishments, including everything he undertook, are written in the Book of the Chronicles of the Kings of Israel, are they not?
1 Kings 15:33
33 Baasha Reigns over IsraelDuring the third year of the reign of King Asa of Judah, Ahijah’s son Baasha became king over all of Israel. He reigned for 24 years at Tirzah.
2 Chronicles 16:1
1 Asa Attacks Baasha
During the thirty-sixth year of Asa’s reign, King Baasha of Israel invaded Judah and interdicted Ramah by building fortifications around it so no one could enter or leave to join King Asa of Judah.