Armies were Composed of War Chariots
Source: TTT
Joshua 17:16
“The hill country is not enough for us,” they replied, “and all the Canaanites who live in the valley have iron chariots, both in Beth-shean with its towns and in the Valley of Jezreel.”
Judges 4:3
Then the Israelites cried out to the LORD, because Jabin had nine hundred chariots of iron, and he had harshly oppressed the Israelites for twenty years.