Numbers 14:45

45 Then the Amalekites and the Canaanites who lived in that hill country came down, and struck them and beat them down as far as ^aHormah.

Judges 3:13

13 And he gathered to himself the sons of Ammon and Amalek; and he went and struck Israel, and they possessed ^athe city of the palm trees.

3 And it was when Israel had sown, that the Midianites would go up with the Amalekites and the sons of the east and go up against them.