Russia updates nuclear doctrine to allow nuclear response to large conventional attacks

Russia has updated its nuclear doctrine, stating that any large conventional attack on Moscow could trigger a nuclear response. This change follows the U.S. decision to allow Ukraine to use longer-range missiles against targets in Russia. President Vladimir Putin signed the revised doctrine, which considers an attack on Russia by a non-nuclear power, supported by a nuclear power, as a joint attack. The new guidelines detail conditions under which nuclear weapons could be used, particularly in response to significant aerial assaults. The announcement comes amid ongoing conflict in Ukraine, with reports of increased military support for Ukraine from the U.S. and the UK. The updated doctrine reflects Russia's readiness to escalate threats as the war continues.