What does Deuteronomy 7:19 mean?

You saw with your own eyes the huge trials, the signs and wonders, the strong hand and outstretched arm the Lord your God used to bring you out. That's exactly what He's going to do to every nation you face. Deuteronomy 7:19 - Modern Text Bible

(The same miraculous power that freed them from Egypt will be used to defeat their new enemies.)