Judges 6:3

6:3 Whenever the Israelites planted their crops, the Midianites, Amalekites, and the people from the east would attack them.

Judges 6:33

Gideon Summons an Army and Seeks Confirmation

6:33 All the Midianites, Amalekites, and the people from the east assembled. They crossed the Jordan River and camped in the Jezreel Valley.

Judges 7:12

7:12 Now the Midianites, Amalekites, and the people from the east covered the valley like a swarm of locusts. Their camels could not be counted; they were as innumerable as the sand on the seashore.

Judges 8:10

8:10 Now Zebah and Zalmunna were in Karkor with their armies. There were about fifteen thousand survivors from the army of the eastern peoples; a hundred and twenty thousand sword-wielding soldiers had been killed.