Yuan Shao himself fled north across the Yellow River with only about 800 cavalry , which was what was left of his army .
Yuan Shao 's numerous armies were destroyed and much of his supplies were captured by Cao Cao .
Yuan Shao himself fled north across the Yellow River with only about 800 cavalry , which was what was left of Cao Cao 's army .
Yuan Shao 's numerous armies were destroyed and much of his supplies were captured by Cao Cao .