Preface -- A Nuclear-Weapon-Free World: Executive Overview -- Historical Review -- Past Attempts to Abolish Nuclear Weapons -- Desirability of a NWFW -- Nuclear Weapons After the Cold War -- A Nuclear-Weapon-Free World: Is It Desirable? Is It Necessary? -- Feasibility of a NWFW -- Technological Problems of Verification -- The Breakout Problem -- Societal Verification -- A NWFW Regime: Treaty for the Abolition of Nuclear Weapons -- Verification and Enforcement in a NWFW -- International Security in a NWFW -- Making Nuclear Weapons Illegal -- Alternative Routes to a NWFW -- Nuclear Weapons for the United Nations? -- An International Nuclear Security Force -- An Asymptotic Approach to a NWFW -- Intermediate Steps -- Approaches Towards a Nuclear-Weapon-Free World