Mark Metcalf contributed two chapters on PRC military ethics to Warfare Ethics in Comparative Perspective China and the West (Routledge), published in April 2024. The chapters were "A Survey of 21st Century PLA Scholarship on the Role of Military Ethics in Warfare" and "Moral Warfare: Weaponizing Ethics to Weaken, Divide, and Smash the Enemy."
https://www.routledge.com/