A UN treaty banning nuclear weapons has now been ratified by 50 countries and will come into force in January 2021.
Supporters are hailing it as a “new chapter” in the way the world sees atomic weapons.
The UN Secretary-General Antonio Guterres said the treaty “represents a meaningful commitment towards the total elimination of nuclear weapons”.
However, none of the countries that approved it have a nuclear arsenal – and none of the world’s acknowledged nuclear powers have signed up to the treaty.
So, how effective will this agreement be towards disarmament?
Presenter: Mohammed Jamjoom
Sahil Shah – policy fellow, European Leadership Network.
Beatrice Fihn – executive director, International Campaign to Abolish Nuclear Weapons (ICAN)
Sharad Joshi – associate professor, Middlebury Institute of International Studies