As the Quraysh fled, the archers watching the army's back rushed to gather the spoils of war. The enemy noticed this and launched a cavalry counter attack from the unprotected rear, changing the tide of the war.Lecture notes available at http://www.why-quran.org/?p=497.Subscribe at http://www.why-quran.org/subscribe to watch the lectures live and participate in the Q&A at the end of each class.Video recording of this lecture + Q&A available on YouTube at https://www.youtube.com/watch?v=02wW7yvrbbs&list=PLpkB0iwLgfTat-Pgh4W3WFmupPamiC9UT.