Russian President Vladimir Putin said Moscow expects to announce soon a new weapon that it has been developing and testing for its vast nuclear arsenal, the world's largest, and warned that an arms race is underway. It comes as the New START treaty between the U.S. and Russia, restricting nuclear weapons, is set to expire in February 2026, and tensions with the NATO defense alliance escalate sharply over the ongoing war in Ukraine. There is a growing risk of a direct clash between Russia and