War between the king in the north (Yehoash) and the king in the south (Amatzia). These two kings are succeeded by their sons, Azaria in Yehuda and Yerevam in Israel. And who is Yerevam's right hand man? None other than Yonah the son of Amitai!. Hebrew and English text for this chapter can be found here: https://www.sefaria.org/II_Kings.13
