Drews’ work is a significant departure from two major existing theories: Proposed Mechanism Drews' Counterpoint Horse-riding raiders/pastoralists (3500–2500 BC)
Warfare didn't exist in that form; it was too early for his military model. Agricultural spread (7000 BC) Militarism and the Indo-Europeanizing of Europe
Modern ancient DNA studies increasingly support earlier, massive migrations from the Steppe during the Yamnaya period (c. 3000 BC), complicating Drews' 1600 BC focus. Drews’ work is a significant departure from two