The U.N. Treaty on the Prohibition of Nuclear Weapons

 On 7 July 2017 – following a decade of advocacy by ICAN and its partners – an overwhelming majority of the world’s nations adopted a landmark global agreement to ban nuclear weapons, known officially as the Treaty on the Prohibition of Nuclear Weapons. On 22 January 2021, the treaty will enter into force.

Source : https://www.icanw.org/the_treaty