This fourth volume in the book series on Nuclear Non-Proliferation in International Law focuses on human perspectives regarding the development and use of nuclear energy; the need for regional solutions; and recent activities towards prohibiting and abolishing nuclear weapons. Jonathan L. Black-Branch is Dean of Law and Professor of International and Comparative Law; Bencher of the Law Society of Manitoba; JP and Barrister (England & Wales); Barrister & Solicitor (Manitoba); and, Chair of the International Law Association (ILA) Committee on Nuclear Weapons, Non- Proliferation & Contemporary International Law. Dieter Fleck is Former Director International Agreements & Policy, Federal Ministry of Defence, Germany; Member of the Advisory Board of the Amsterdam Center for International Law (ACIL); and Rapporteur of the International Law Association (ILA) Committee on Nuclear Weapons, Non- Proliferation & Contemporary International Law.