What does 1 Samuel 15:3 mean?

'Now go and attack the Amalekites. Completely destroy everything they have. Don’t spare anyone—men, women, children, babies, cattle, sheep, camels, and donkeys.' 1 Samuel 15:3 - Modern Text Bible

(God’s command is total destruction of the Amalekites and all they own, as an act of judgment for their past actions.)