This chapter compares the fields of development and peacebuilding, with an eye to exploring affinities as well as areas of resistance to collaboration. It identifies the following points of convergence: 1) a focus on the local community; 2) an emerging consensus regarding the “rules of engagement”; and 3) a growing recognition that the criteria for “authentic” human development must be articulated on a case-by-case basis. Religious actors and institutions are already located, indeed long established, at this nexus, and frequently provide the fundamental social infrastructure within which peacebuilders and development workers alike must operate. Accordingly, the chapter argues, first, that peacebuilders and development professionals should collaborate systematically, creating an alliance that would help address structural challenges currently plaguing both fields. Second, religious actors and institutions must be welcomed more deliberately into regional as well as local projects and planning, thereby making the “liberal peace” model more elicitive, holistic, and effective.