This article, originally presented as a keynote address at the 2019 McCain conference, proposes that we must take seriously the “moral” component of moral injury. In addition to psychological treatment, wounded warriors suffering moral injury require atonement for genuine transgressions, and insight when the conduct they regard as transgression actually is not. The article defines the dimensions of moral injury as parallel to those of physical injury: pain, loss of functionality, and (in some cases) disfigurement. It then asks how atonement (...) can be achieved, turning to an unusual source for inspiration: the laws of atonement set out by the medieval Jewish philosopher Moses Maimonides. Maimonides proposes four requirements: verbal confession, repentance, reparation, and apology. The article explains their meaning in the context of contemporary wounded warriors. Finally, it argues that Judaism’s unique tradition of collective atonement offers an important model for the armed services. (shrink)