Judges 6:3, 5, 33

Whenever the Israelites planted crops, the Midianites, Amalekites, and other peoples from the east would come and attack them.

The Midianites came with their tents and their animals like swarms of locusts to ruin the land. There were so many people and camels they could not be counted.

All the Midianites, the Amalekites, and other peoples from the east joined together and came across the Jordan River and camped in the Valley of Jezreel.