Sisera gathered together all his chariots, even nine hundred chariots of iron, and all the people who were with him, from Harosheth of the Gentiles, to the river Kishon.
Evidently God sent an unseasonable thunderstorm that mired Sisera’s chariots in the softened valley soil (cf. Judges 5:4-5; Judges 5:20-21). The main battle apparently took place near Taanach near the south central portion of the valley (Judges 5:19). The Israelites destroyed the whole Canaanite army that participated in this encounter (Judges 4:16).