New START - a key nuclear weapons control treaty between the US and Russia - ends today. Sophie Bolt of Campaign for Nuclear Disarmament explains why this matters, and how the US is fuelling a new nuclear arms race. Learn more by signing up to our FREE event on Thursday 19 February a.nin.tl/Nuke | New Internationalist

Five years ago today, the UN Treaty on the Prohibition of Nuclear Weapons (TPNW) entered into force, becoming legally binding international law. For the first time in history, nuclear weapons are illegal, and the world has a clear framework for their elimination. What began as a milestone moment has since grown into a powerful global process: more states have joined the treaty, successful meetings have been held, and the norms around nuclear weapons have fundamentally shifted. 👉 Read more about