In recent years, many efforts on nuclear disarmament and non-proliferations have been made by non-nuclear states and civil society. The dissatisfaction has motivated non-governmental organizations to pursue a ?humanitarian initiative? based on international conferences aimed at highlighting the humanitarian consequences of certain arms and nuclear weapons. This study examines the five key roles, according to Rapport et al. (2012), that civil society organizations have played in the establishment of arms control conventions, more specifically the Mine Ban Treaty, also called Ottawa Convention, and the Cluster Munition Convention.