S1E4: Leo VI (the Wise) and the Beginning of Western Strategic Thinking

In this episode, we discuss the reign of Leo VI (the Wise), Byzantine emperor and strategist (r. 866–912), with Dr Georgios Chatzelis from the Centre for Advanced Study Sofia (CAS).Leo VI predates the 18th century flourishing of Western thinking about strategy by almost 900 years – although it is the translation of the Greek word strategía in his treatise (confusingly called The Tactic) that became the word ‘strategy’ in modern Western languages. Occupying a unique position between East and West, Leo VI’s empire was shaped by its Roman heritage and the Arab threats it faced. Leo differentiated between tactics, which were about conduct on the battlefield, and strategy, which was about how other skills required of a commander could be combined for defence. Emperor Leo’s book was regarded by Byzantine generals as a sort of law of war. It places war within a political context, describes how wars should be fought – including matters of ethics – and comments on the way the Byzantine Empire’s enemies fought, seeking to ensure that his commanders kept the moral high ground. Therefore, and despite the passing of more than a millennium, Leo’s contribution and understanding of strategy remain recognisable to a modern audience.

Om Podcasten

Our thinking about defence and security is shaped by ideas. What we see depends on our vantage point and the lenses we apply to the world. Governments, military and business leaders are seeking to maximise the value they gain from scarce resources by becoming more ‘strategic’. Standing on the shoulders of the giants of strategy from the past helps us see further and more clearly into the future. This series is aimed at those looking to learn more about strategy and how to become more strategic – leaders, practitioners and scholars. This podcast series, co-chaired by Professor Beatrice Heuser and Paul O’Neill, examines the ideas of important thinkers from around the world and across the ages. The ideas, where they came from and what shaped those whose ideas shape us now. By exploring the concepts in which we and our adversaries think today, the episodes will shine a light on how we best prepare for tomorrow. The views or statements expressed by guests are their own and their appearance on the podcast does not imply an endorsement of them or any entity they represent. Views and opinions expressed by RUSI employees are those of the employees and do not necessarily reflect the view of RUSI.