Part of an eighteen-month Academy project on Civil Wars, Violence, and International Responses, the essays in the Winter 2018 issue of Dædalus consider the impediments to ending civil wars and offer policy recommendations for states involved in conflict and for the international community. The companion Fall 2017 issue of Dædalus describes the causative factors of civil wars in the modern era, examines the security risks posed by intrastate violence, and explores the challenges confronting external actors.