Roel Konijnendijk studied Ancient History at Leiden University before moving to University College London to complete his PhD (2015). His work focuses on Classical Greek military thought and practice, the military encounter between the Greek and Persian military systems, and the historiography of Greek warfare. His PhD research on Greek approaches to battle was published as Classical Greek Tactics: A Cultural History (Leiden: Brill, 2018). He is currently a Marie Curie Postdoctoral Fellow, studying the earliest academic scholars in the field of Greek military history. In his spare time, he is a moderator of AskHistorians, one of the largest public history platforms on the internet.