Abijah, Rehoboam's son, fights against Jeroboam, and prophesies well against him. Jeroboam ambushes him, but Judah wins the battle.
Abijah's son Asa reigns. There is peace in his time, except Ethiopia comes up and attacks with a million soldiers. Asa is prepared with 580,000 men, and faithful in reforming the nation's worship and prayer before the battle.
It is important to know the purpose of any warfare. Is it national self-interest, defense? Is it for a proper cause? Both Abijah and Asa fight rightly and well.