UN Secretary-General António Guterres has warned that the expiration of the New START treaty represents a “grave moment” for international peace and security, as binding limits on US and Russian strategic nuclear weapons fall away amid heightened global tensions.
The war in Ukraine remains the world’s biggest threat to nuclear safety as a fifth year of combat looms, the head of the UN nuclear watchdog warned on Friday, citing continued risks to power supplies at nuclear sites vulnerable to fighting nearby
