On 20 September 2017, an historic and legally-binding treaty prohibiting nuclear weapons opened for signature at United Nations Headquarters in New York. In a post published here on 28 July, Associate Professor Tilman Ruff - the founding chair of the International Campaign to Abolish Nuclear Weapons (ICAN) – described how the Treaty on the Prohibition of Nuclear Weapons came about and what’s in it. Today, Associate Professor Ruff describes the challenge ahead for governments and civil society in promoting and implementing the Treaty.
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