A collection of discussions with those in the Profession of Arms that tries to understand the issues around how to fight, and succeed, against adversaries in the 2020s. We pose the questions as whether a single Western Way of Warfare (how Western militaries fight) has been successful, whether it remains fit for task today, and how it might need to adapt in the future? It is complemented by the ‘Adversarial Studies’ project that looks at how adversaries fight. 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.