Russian President Vladimir Putin is fond of nuclear saber-rattling: On the eve of Russia’s full-scale invasion of Ukraine in February 2022, the Kremlin leader presided over the rehearsal of a nuclear strike, and his not-so-veiled nuclear threats have ...

Russian President Vladimir Putin said Russia was changing its nuclear deterrence doctrine so that an attack by a non-nuclear state backed by a nuclear-armed ally would now be viewed as a "joint attack.

In his remarks, Putin mentioned three apparently “new” conditions where Russia could consider the use of nuclear weapons: Aggression by a non-nuclear state against Russia “with the participation or support” of a nuclear-armed state would be considered an attack by both.