Midianites

Descended from Abraham through his wife Keturah (Genesis 25:2). Moses' father-in-law Jethro was a Midianite priest, making them sometimes allies. But the Midianites also seduced Israel into idolatry at Baal Peor (Numbers 25) and later oppressed Israel during the time of Judges — until Gideon defeated them with just 300 men (Judges 7). Their story shows how complicated international relationships were in the ancient world.