The book explores the preparatory work on arms control treaties and in particular the role of civil society. It analyzes the positive experiences of the movements against chemical weapons, anti-personnel mines, and cluster munitions, as well as the recent conclusion of the Arms Trade Treaty. The author examines the question of whether civil society will be able to replicate the success strategies that have been used, in particular, in the field of anti-personnel mines (Ottawa Convention) and cluster munitions (Oslo Convention) in the nuclear weapons field. Is there any reason why the most destructive weapons should not be outlawed by a legally binding instrument? The book also explains the effects of weapons, especially nuclear weapons, on human beings, the environment, and global development, thereby focusing on vulnerable groups, such as indigenous peoples, women, and children. It takes a broad approach to human rights, including economic, social, and cultural rights. The author concludes that the use of nuclear weapons is illegal under international humanitarian and human rights law and, moreover, constitutes international crimes under the Rome Statute of the International Criminal Court. In his general conclusions, the author makes concrete proposals for the progress toward a world without nuclear weapons.