the origin of nomadic warefare

[John Maddox Roberts]

I believe Hadrianus's original question might refer to something more correctly called "steppe warfare," the sort practiced by the Parthians and Huns and perfected by the Mongols. This required mounted archers so it could not have originated before the horse was bred up to the size required to carry a rider. Does anyone know when that happened? <p></p><i></i>